Sinus Infection Before Flying Home: What Travelers Should Know

Mijan Mijan • August 24, 2026

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Sinus Infection Before Flying Home: What Travelers Should Know

Introduction

Developing a sinus infection near the end of a trip can create an uncomfortable problem for travelers preparing to fly home. A blocked nose, facial pressure, headache, thick nasal mucus, and congestion may already make everyday activities difficult. Air travel can add another concern because changes in cabin pressure during takeoff and landing may worsen sinus and ear discomfort.

For visitors in South Korea, this can be particularly inconvenient after a busy trip involving long flights, seasonal allergies, air pollution, crowded public transportation, and frequent changes between indoor and outdoor environments.

The good news is that many sinus infections are viral and improve without antibiotics. However, severe symptoms, symptoms that worsen after initially improving, or symptoms that persist unusually long may require medical assessment. (cdc.gov)

This guide explains what travelers should know about sinus infections before flying home, how to manage congestion, when flying may be uncomfortable or inappropriate, and when to see a doctor in Korea.

What Is a Sinus Infection?

A sinus infection, also called sinusitis, occurs when the tissues lining the sinuses become inflamed.

The sinuses are air-filled spaces around the nose and eyes. Normally, mucus drains through small openings into the nasal passages. When these passages become swollen or blocked, mucus can accumulate and create pressure and congestion.

Sinusitis can occur after a cold or other respiratory infection. Allergies and other conditions that block normal sinus drainage can also contribute.

Acute sinus infections are commonly caused by viruses. Bacterial sinus infections occur less frequently. (cdc.gov)

Common Symptoms Before Flying

Sinusitis can produce several symptoms that are especially uncomfortable during air travel.

Common symptoms include:

  • Nasal congestion
  • Runny nose
  • Facial pressure
  • Facial pain
  • Headache
  • Postnasal drainage
  • Sore throat
  • Reduced sense of smell
  • Cough
  • Thick nasal discharge

You may feel pressure around the forehead, cheeks, nose, or eyes.

Some people also experience tooth or upper-jaw discomfort because the maxillary sinuses are located close to the upper teeth.

Why Can Flying With Sinus Congestion Be Uncomfortable?

Airplane cabins are pressurized, but cabin pressure still changes during ascent and descent.

Normally, air moves through the sinuses as pressure changes.

When nasal passages are severely congested, swollen tissues can interfere with normal pressure equalization.

This can produce:

  • Facial pressure
  • Sinus pain
  • Headache
  • Ear pressure
  • Ear pain
  • A blocked-ear sensation

The discomfort may be most noticeable during descent.

This condition is sometimes called sinus barotrauma or sinus barosinusitis.

For a traveler with significant congestion, the issue is therefore not simply whether the sinus infection is contagious. The ability of the sinuses and ears to equalize pressure is also important.

Should You Fly Home With a Sinus Infection?

Having a sinus infection does not automatically mean you cannot fly.

The decision depends on the severity of your symptoms, how congested you are, your overall health, and whether you have complications.

A mild sinus infection with manageable congestion may not prevent air travel.

However, consider medical advice before flying if you have:

  • Severe facial pain
  • Significant swelling
  • High or persistent fever
  • Severe headache
  • Significant breathing difficulty
  • Severe ear pain
  • Symptoms that are rapidly worsening
  • Vision changes
  • Confusion
  • Severe weakness

If you are very unwell, it may be safer to obtain medical advice before boarding.

How Long Should You Wait Before Flying?

There is no universal number of days that every person with sinusitis must wait before flying.

The more important issue is the severity of congestion and your ability to equalize pressure.

If symptoms are improving and congestion is mild, flying may be possible.

If your nose and sinuses are severely blocked, pressure changes during the flight may be considerably more painful.

If you have an important return flight and significant sinus symptoms, consider speaking with a healthcare professional before departure rather than relying on a fixed waiting period.

Sinus Infection vs. Common Cold

A cold and sinus infection can have overlapping symptoms.

A cold commonly causes:

  • Runny nose
  • Nasal congestion
  • Sneezing
  • Sore throat
  • Cough
  • Mild fatigue

Sinusitis may cause more prominent:

  • Facial pressure
  • Facial pain
  • Nasal obstruction
  • Postnasal drainage
  • Reduced smell

However, symptoms can overlap significantly.

A cold can also cause temporary sinus inflammation without a separate bacterial sinus infection.

This distinction matters because most viral respiratory infections do not require antibiotics. (cdc.gov)

Does Thick or Colored Mucus Mean You Need Antibiotics?

Not necessarily.

Nasal mucus can become thick, yellow, or green during a viral infection.

The color of mucus alone does not establish that bacteria are responsible or that antibiotics are required. (cdc.gov)

Healthcare professionals consider the entire symptom pattern, including duration and whether symptoms are improving or worsening.

When Might a Sinus Infection Be Bacterial?

A healthcare professional may suspect bacterial sinusitis when symptoms follow certain patterns.

According to CDC guidance, bacterial sinusitis is more likely when:

  • Symptoms last more than 10 days without improvement.
  • Symptoms are severe, such as fever of 39°C or higher with purulent nasal discharge or facial pain lasting at least three to four consecutive days.
  • Symptoms initially improve and then worsen again.

These patterns can help distinguish bacterial sinusitis from many uncomplicated viral infections. (cdc.gov)

If you have one of these patterns shortly before your flight home, consider medical evaluation.

What Can Help Before Your Flight?

If symptoms are mild, several measures may help you feel more comfortable.

Drink Enough Fluids

Adequate hydration can help prevent excessive dryness and may make nasal secretions easier to manage.

Keep water available during the day and during your journey.

Use Saline Nasal Spray

Saline nasal sprays can help moisturize the nasal passages and loosen mucus.

For many travelers, saline products are a convenient option to carry during travel.

If you use a nasal irrigation device, use it correctly and use appropriately prepared water according to product or medical guidance.

Rest

A demanding final day of sightseeing may not be ideal when you are recovering from an infection.

Allowing extra time for rest before a long flight can make the journey easier.

Avoid Smoke

Cigarette smoke can irritate already inflamed nasal passages.

Avoid smoking and secondhand smoke before and during travel.

Consider a Humidified Environment

Dry indoor air can worsen nasal and throat discomfort.

Maintaining comfortable indoor humidity may help reduce irritation, although excessive humidity should be avoided.

What About Decongestants Before Flying?

Some travelers use decongestants to reduce nasal congestion before air travel.

These medications are not appropriate for everyone.

Certain oral decongestants can affect blood pressure and heart rate and may interact with other medications. Some nasal decongestant sprays can also cause rebound congestion when used for too long.

If you are considering a decongestant before your flight, ask a pharmacist or healthcare professional whether it is appropriate for you.

This is particularly important if you have:

  • High blood pressure
  • Heart disease
  • Glaucoma
  • Thyroid disease
  • Diabetes
  • Prostate problems
  • Pregnancy
  • Medication interactions

Do not take a medication simply because another traveler used it successfully.

Pain Relief Before Flying

If sinus pressure is causing discomfort, an appropriate over-the-counter pain reliever may provide temporary relief.

The right medication depends on your age, medical conditions, current medications, allergies, and other factors.

Check the active ingredients in combination cold and flu products carefully to avoid accidentally taking the same medication more than once.

If you are uncertain, ask a pharmacist in Korea for guidance.

What Happens During Takeoff?

During takeoff, cabin pressure decreases as the aircraft climbs.

The pressure inside your sinuses and middle ears needs to adjust.

If you are congested, you may notice:

  • Ear fullness
  • Popping sensations
  • Facial pressure
  • Mild headache
  • Temporary discomfort

For many travelers, this is manageable.

What Happens During Landing?

Landing can be more uncomfortable because cabin pressure increases as the aircraft descends.

If the sinuses cannot equalize pressure efficiently, you may experience significant facial or ear pain.

Try to remain awake during descent so you can swallow and perform gentle pressure-equalizing techniques when appropriate.

Tips for Managing Sinus Pressure on the Plane

Before your flight:

  1. Hydrate adequately.
  2. Consider saline nasal spray.
  3. Discuss decongestant use with a pharmacist or doctor if appropriate.
  4. Keep necessary medications in your carry-on luggage.
  5. Avoid smoking.

During the flight:

  1. Drink fluids regularly.
  2. Stay awake during descent if possible.
  3. Swallow frequently.
  4. Yawn or gently move your jaw.
  5. Avoid forceful pressure-equalizing maneuvers.
  6. Monitor your symptoms.

If severe pain develops, inform the cabin crew.

Can You Use Nasal Irrigation Before Flying?

Nasal irrigation can help clear mucus and improve nasal comfort for some people.

However, it must be performed safely.

Use only appropriately prepared water, such as distilled, sterile, or properly boiled and cooled water as recommended by health authorities. Do not use untreated tap water in a nasal irrigation device.

Clean and dry the device according to the manufacturer's instructions.

If you have severe nasal obstruction, recurrent sinus problems, or are uncertain how to perform nasal irrigation safely, ask a healthcare professional.

When Should You See a Doctor in Korea?

Consider visiting a clinic before flying home if:

  • Symptoms last more than 10 days without improvement.
  • Symptoms improve and then become worse.
  • You have severe facial pain.
  • You have a high or persistent fever.
  • Nasal symptoms are severe.
  • You have significant ear pressure or pain.
  • You have repeated sinus infections.
  • Symptoms are interfering with sleep or normal activities.
  • You are uncertain whether you are fit to fly.

A healthcare professional can assess your symptoms and determine whether further evaluation or treatment is appropriate.

Emergency Warning Signs

Some sinus-related symptoms require urgent medical attention.

Seek urgent care if you develop:

  • Swelling or redness around the eyes
  • Vision changes
  • Severe headache unlike your usual headaches
  • Confusion
  • Stiff neck
  • Severe facial swelling
  • Significant difficulty breathing
  • Rapidly worsening symptoms

Complications involving the tissues around the eye or deeper structures are uncommon but can be serious.

Do not attempt to board a long-haul flight with severe or rapidly worsening symptoms without medical assessment.

Sinus Infection and Ear Pressure

The nose, sinuses, and ears are connected through structures that help regulate pressure.

Severe nasal congestion can therefore make both sinus and ear symptoms worse during a flight.

If you already have:

  • Ear infection
  • Significant ear pain
  • Recent ear surgery
  • Severe congestion
  • Previous severe barotrauma

you may want to discuss air travel with a healthcare professional before departure.

Flying Home From Korea With a Child Who Has Sinus Symptoms

Children can also experience nasal congestion and ear discomfort during flights.

If a child has a mild cold, flying may be possible, but significant symptoms should be discussed with a pediatric healthcare professional.

Seek medical advice if the child has:

  • High fever
  • Difficulty breathing
  • Severe ear pain
  • Significant facial swelling
  • Poor fluid intake
  • Unusual sleepiness
  • Rapidly worsening symptoms

Parents should also check that any medication given to a child is age-appropriate and correctly dosed.

Sinus Infection and Air Quality in South Korea

Air pollution can irritate the nose and respiratory tract and may make congestion feel worse.

Travelers in Seoul, Busan, and other Korean cities may notice symptoms more strongly on days when air quality is poor.

If outdoor air is irritating your nose:

  • Check local air-quality information.
  • Limit prolonged outdoor exposure.
  • Choose indoor activities when appropriate.
  • Avoid smoking.
  • Follow medical advice if you have asthma or another respiratory condition.

Air pollution does not necessarily mean you have a sinus infection, but it can contribute to nasal irritation.

What Should International Visitors Tell a Korean Doctor?

If you visit a clinic before flying home, provide a clear history.

Tell the healthcare professional:

  • When your symptoms started
  • Whether you recently had a cold
  • Whether symptoms are improving or worsening
  • Whether you have facial pain
  • Whether you have fever
  • Whether you have ear pressure
  • Whether you have allergies
  • Whether you have taken any medications
  • Your medication allergies
  • Your planned flight time
  • Any existing medical conditions

Mentioning your flight schedule is particularly useful because it allows the clinician to consider your symptoms in the context of imminent air travel.

Should You Get a Medical Certificate Before Flying?

A medical certificate is not automatically necessary for every traveler with sinusitis.

However, if your illness is severe enough to affect your ability to travel, an airline or travel insurer may have specific documentation requirements.

Requirements vary by airline and situation.

If you believe your condition may require changing or cancelling your flight, contact the airline and your travel insurance provider as soon as possible.

A doctor can provide appropriate medical documentation when clinically justified.

Common Mistakes to Avoid

Assuming colored mucus means a bacterial infection

Yellow or green mucus alone does not prove that you need antibiotics. (cdc.gov)

Flying without considering severe congestion

Significant congestion can make pressure changes during descent very painful.

Taking someone else's decongestant

Medications can have contraindications and interactions.

Using nasal decongestant sprays for too long

Some sprays can cause rebound congestion when overused.

Ignoring eye swelling

Swelling or redness around the eye associated with sinus symptoms requires prompt medical evaluation.

Waiting until the airport to address severe symptoms

If you are significantly unwell before departure, seek medical advice before arriving at the airport.

A Practical Checklist Before Flying Home

If you have sinus symptoms near the end of your Korea trip:

  1. Assess how severe your symptoms are.
  2. Check whether symptoms are improving or worsening.
  3. Stay hydrated.
  4. Use appropriate saline nasal care if helpful.
  5. Ask a pharmacist or doctor about medication options.
  6. Consider medical evaluation for persistent or severe symptoms.
  7. Tell your healthcare provider that you have an upcoming flight.
  8. Keep essential medications in your carry-on luggage.
  9. Allow extra time for rest before departure.
  10. Seek urgent care for severe warning signs.

Frequently Asked Questions

Can I fly home with a sinus infection?

A mild sinus infection does not automatically prevent flying. However, significant congestion can increase sinus and ear pressure during takeoff and landing. If symptoms are severe or worsening, consider medical advice before flying.

Is it safe to fly with sinus congestion?

Mild congestion may be manageable, but severe blockage can make pressure changes painful. Discuss significant congestion with a healthcare professional, particularly before a long-haul flight.

Why does my face hurt when flying with sinusitis?

Changes in cabin pressure can create pressure differences when swollen or blocked sinus passages cannot equalize normally. This may cause facial pressure or pain, particularly during descent.

Should I take a decongestant before flying?

Some travelers use decongestants before flights, but they are not suitable for everyone. People with certain medical conditions or medication interactions should consult a pharmacist or doctor first.

Does green mucus mean I need antibiotics?

No. Yellow or green mucus can occur during viral infections and does not by itself prove that a bacterial infection is present.

When should I see a doctor for a sinus infection before flying?

Seek medical advice if symptoms last more than 10 days without improvement, become severe, worsen after initially improving, or are accompanied by significant fever, facial pain, or other concerning symptoms. (cdc.gov)

Can a sinus infection cause ear pain during a flight?

Yes. Nasal and sinus congestion can interfere with pressure equalization and contribute to ear discomfort during changes in cabin pressure.

What should I do if I develop severe sinus pain on a plane?

Inform the cabin crew and avoid forceful pressure-equalizing techniques. If symptoms are severe or accompanied by other concerning symptoms, seek medical evaluation after landing.

Can air pollution in Korea make sinus symptoms worse?

Air pollution can irritate the nose and respiratory tract and may make congestion or nasal discomfort more noticeable. Travelers can consider reducing prolonged outdoor exposure when air quality is poor.

Conclusion

A sinus infection shortly before flying home can make the final stage of a Korea trip uncomfortable, but many cases are mild and improve with supportive care.

The main concern with air travel is pressure. Significant nasal and sinus congestion can interfere with pressure equalization and cause facial or ear pain, particularly during descent.

Before flying, stay hydrated, rest, consider appropriate saline nasal care, and speak with a pharmacist or healthcare professional about medications if needed. Avoid assuming that thick or colored mucus automatically means you need antibiotics. Most acute sinus infections are viral.

If symptoms persist for more than 10 days without improvement, become severe, or worsen after initially improving, medical assessment is appropriate.

Travelers in Seoul, Busan, and throughout South Korea should also seek urgent medical attention for severe facial swelling, eye symptoms, serious breathing problems, confusion, or rapidly worsening illness.

If you are unsure whether you are well enough to fly, especially before a long international journey, getting professional medical advice before departure is safer than trying to push through severe symptoms.

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Visitors should consider the type of medical care they need, whether the facility accepts international patients, language support, appointment requirements, location, payment, insurance documentation, and whether follow-up care may be necessary. This guide explains how general healthcare in Myeongdong works from a visitor's perspective and how international patients can prepare for a smoother medical visit in Seoul. Understanding Healthcare in Myeongdong What types of healthcare are available? Myeongdong has access to several types of healthcare providers. Depending on your needs, you may find: General medical clinics Internal medicine clinics Dermatology clinics Dental clinics Korean medicine clinics Specialist clinics Pharmacies Larger hospitals accessible by public transportation Clinics offering international patient services The official Medical Korea directory includes registered Myeongdong providers across different medical categories. Examples include Myeongdong BLS Clinic, Myeongdong CNP Cha & Park Dermatology, Myeongdong Combi Dental Clinic, Myeongdong Dr. Evers Clinic, and Myeongdong Lia Korean Medical Clinic. The important point is that not every clinic provides the same type of care . A general medical problem should be directed to an appropriate general or internal medicine provider rather than assuming that a nearby dermatology or aesthetic clinic can manage it. General healthcare is different from aesthetic healthcare Myeongdong is strongly associated with Korean beauty and cosmetic medicine. Many visitors therefore assume that most clinics in the district primarily provide aesthetic treatments. That is not the complete picture. Visitors can also access medical care for ordinary illnesses and health concerns. A general medical clinic may evaluate symptoms such as fever, cough, sore throat, digestive problems, headaches, or minor illnesses. Medical Korea's registered-provider system can help international visitors identify institutions registered to serve foreign patients. Common Reasons Tourists Seek General Medical Care Fever and flu-like symptoms Travelers can develop respiratory infections during international trips. A fever may occur alongside: Cough Sore throat Runny nose Body aches Fatigue Headache Chills A clinic can assess your symptoms and determine whether further examination or testing is appropriate. Do not assume that every fever is simply a cold, particularly if symptoms are severe, persistent, or worsening. Cough and sore throat Air-conditioning, changes in climate, lack of sleep, allergies, and respiratory infections can all contribute to throat and respiratory symptoms. If a cough or sore throat interferes with your ability to travel, eat, sleep, or breathe comfortably, medical evaluation may be appropriate. Digestive problems Food-related digestive problems are another reason travelers may seek medical care. Symptoms can include: Diarrhea Nausea Vomiting Abdominal discomfort Stomach cramps Loss of appetite Mild symptoms may improve with rest and hydration, but persistent vomiting, severe diarrhea, blood in the stool, significant dehydration, severe abdominal pain, or other concerning symptoms warrant medical attention. Headaches and fatigue Long flights, jet lag, dehydration, skipped meals, excessive walking, and changes in sleep can contribute to headaches and fatigue. If symptoms are unusual, severe, persistent, or accompanied by other concerning signs, a medical assessment is appropriate. Minor injuries Tourists can also seek medical attention for relatively minor injuries sustained while sightseeing. Examples include: Minor cuts Sprains Bruises Falls Foot problems Insect bites Mild burns A clinic may be appropriate for certain minor problems, while more serious injuries require hospital or emergency care. When Should You Choose a General Clinic? General clinics can be useful for routine problems A general or internal medicine clinic may be appropriate when you have a non-emergency health concern that needs professional assessment. Examples may include: Fever Cold or flu-like symptoms Sore throat Cough Digestive symptoms Mild infections Headaches Minor illnesses Certain skin or allergic complaints The exact services vary by facility, so check before visiting. Do not use a clinic as a substitute for emergency care Some medical situations require immediate emergency attention rather than a routine clinic appointment. Seek emergency medical assistance for potentially life-threatening symptoms such as: Severe difficulty breathing Loss of consciousness Severe chest pain Major trauma Uncontrolled bleeding Severe neurological symptoms Other rapidly worsening or life-threatening conditions Do not delay emergency care because you are unsure about the Korean healthcare system. How to Choose a Healthcare Provider in Myeongdong Start with the medical problem The most important question is not "Which clinic is closest?" Instead, ask: What type of healthcare do I need? For example: Fever → General medicine or internal medicine Dental pain → Dental clinic Skin concern → Dermatology Cosmetic treatment → Aesthetic or dermatology clinic Serious injury → Hospital or emergency service Medication issue → Appropriate physician or pharmacist Choosing the correct specialty can save time and reduce unnecessary transfers. Check whether the provider serves international patients International visitors may have additional needs involving language, registration, payment, documentation, and insurance. Medical Korea maintains a directory of registered healthcare providers serving foreign patients. Its current listings include multiple Myeongdong facilities with international healthcare contact information. This does not mean every listed provider is appropriate for every medical problem. It simply provides a useful starting point when researching healthcare options. Consider language support Language support can make a medical consultation considerably easier. When contacting a clinic, ask whether they provide support in: English Chinese Japanese Another language you require Some Myeongdong facilities listed by Medical Korea explicitly provide interpretation services. 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Also keep relevant insurance information and medical documents available. Explain your symptoms clearly Prepare a short description of: When symptoms started How symptoms have changed Current medications Allergies Existing medical conditions Recent travel or activities Any treatment already received If language is a concern, write the information down before your appointment. What to Bring to a Myeongdong Clinic Prepare a basic medical information package For a straightforward consultation, you may not need extensive documentation. However, the following can be useful: Passport or identification Travel insurance information Current medication list Prescription information Allergy information Relevant medical records Previous test results when applicable Payment method If you recently received medical treatment elsewhere, bring the treatment details when possible. Keep medication information organized Do not rely only on medication brand names. 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For example, some procedures can require temporary avoidance of: Direct sunlight Intensive exercise Excessive sweating Saunas Swimming Certain skincare products Always follow the instructions provided by your treating clinician. Transportation to Healthcare Facilities Walking can be convenient One advantage of healthcare in Myeongdong is that many facilities are located close to hotels, shopping streets, subway stations, and other visitor destinations. Walking may be practical for a minor medical issue if you feel physically well enough to walk. However, do not walk to a clinic simply because it is nearby if you are experiencing severe symptoms. Use taxis when appropriate A taxi may be more appropriate if: You are weak or dizzy You have an injury You are carrying medical equipment You are recovering from treatment The weather is extreme You have difficulty walking Save the Korean address of your healthcare provider on your phone before leaving your accommodation. 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Medical Korea maintains a directory of registered providers serving foreign patients, including several facilities in Myeongdong. What common health problems can be treated at a general clinic? Depending on the facility, general medical clinics may evaluate problems such as fever, cough, sore throat, digestive symptoms, headaches, minor infections, and other non-emergency conditions. Do Myeongdong clinics accept foreigners? Many clinics in Myeongdong serve international patients, but policies and language support differ. Medical Korea lists registered providers with international healthcare services, making its directory a useful starting point for research. Can I visit a Myeongdong clinic without an appointment? Some clinics may accept walk-ins, while others operate primarily by appointment. Always check the individual clinic's current policy before visiting. Do Myeongdong clinics provide English-speaking staff? Some do, but availability varies. Medical Korea's listings identify international healthcare centers and interpretation services at certain Myeongdong facilities. How much does general healthcare cost in Myeongdong? There is no single price. The total cost depends on the consultation, examinations, tests, medication, treatment, insurance status, and facility. Ask the clinic about expected fees before non-emergency treatment when practical. Can tourists use Korean National Health Insurance? Eligibility depends on the individual's status and circumstances. Short-term tourists should not assume that they are covered. Check your own eligibility and insurance arrangements before receiving care. Can I use travel insurance for medical treatment in Korea? Possibly. Coverage depends on your policy. Keep receipts and other medical documentation and follow your insurer's claim requirements. Where can international patients get help finding healthcare in Seoul? The Seoul Medical Tour Help Desk provides information and guidance for foreign patients seeking medical services in Seoul, including medical institution information and reservation guidance. When should I go to a hospital instead of a clinic? A hospital or emergency service may be more appropriate for severe injuries, severe breathing difficulty, loss of consciousness, major bleeding, severe chest pain, serious neurological symptoms, or other potentially life-threatening conditions. Conclusion General healthcare in Myeongdong can be convenient for international visitors because the district combines tourism infrastructure with access to a range of medical services. The key is choosing care based on your actual medical need. General medical problems should be directed to an appropriate general or internal medicine provider, while dental, dermatological, aesthetic, or emergency concerns may require different facilities. 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By Mijan Mijan August 25, 2026
Discover essential health tips for shopping in Myeongdong, including hydration, comfortable shoes, sun protection, food safety, rest, and medical advice.