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Is It Swimmer's Ear or a Middle Ear Infection? An ENT in Gangnam, Seoul Explains

Answered by Dr. Kim Yoo Suk, MD · Board-certified otolaryngologist · Former professor, Yonsei & Ajou University · Consultations in English

The quick way to tell them apart

Both conditions cause ear pain, but they affect different parts of the ear and need different treatment.

Swimmer's ear (otitis externa)

Swimmer's ear is an infection or inflammation of the skin lining the ear canal, between the outer ear and the eardrum. Water left in the canal softens the skin, and bacteria or fungi take hold. Scratching with cotton swabs or ear picks also breaks the skin.

• Pain when you pull the earlobe or press the tragus (the flap in front of the canal)
• Itching and a blocked feeling
• Swelling and redness of the canal
• Discharge, sometimes with a smell
• Often after swimming pools, beaches, saunas, or frequent showering

Middle ear infection (acute otitis media)

Acute otitis media is an infection in the air-filled space behind the eardrum, usually starting after a cold or sinus infection when the Eustachian tube becomes blocked.

• Deep, throbbing ear pain
• Muffled hearing and fullness
• Fever in some cases
• Pain not affected by pulling the outer ear
• Sudden discharge with pain relief if the eardrum perforates

Why the distinction matters

Swimmer's ear is mainly treated with ear canal cleaning and antibiotic drops. Middle ear infections in adults are commonly treated with oral antibiotics and pain relief, and drops alone do not reach behind an intact eardrum. Using the wrong treatment can delay recovery.

Fungal ear infections

In humid summers or after repeated antibiotic drops, fungi can infect the ear canal, causing intense itching and a feeling of fullness. Fungal otitis externa needs cleaning and antifungal treatment.

See a doctor promptly if

• Pain is severe or swelling closes the canal
• You have fever, swelling behind the ear, or facial weakness
• You have diabetes or a weakened immune system, which can make outer ear infections more serious
• Hearing drops suddenly or you feel dizzy

What we do at Gangnam Yonsei ENT

Dr. Kim Yoo Suk, a board-certified otolaryngologist and former Ajou University assistant professor who treats all ear, nose, and throat conditions, examines the ear under magnification. For otitis externa, gentle suction and ear cleaning remove debris so medicated drops can work; if the canal is very swollen, a small wick may be placed to carry the drops inside. For middle ear infections, the eardrum is inspected and tympanometry may assess fluid. Treatment is tailored to the diagnosis.

If you get swimmer's ear repeatedly, ear canal skin conditions, cleaning habits, and prevention strategies are reviewed. More details are on our otitis externa page.

Prevention tips

• Tilt your head to drain water after swimming or showering
• Dry the outer ear with a towel or a hair dryer on low, cool setting held at a distance
• Use well-fitting swim earplugs if you swim regularly
• Avoid cotton swabs and ear picks

English consultations are available near Gangnam-gu Office Station; see location and hours. Related: whether adult ear infections need antibiotics and how to clean your ears safely.

Related questions

Can I swim with swimmer's ear?

It is best to avoid swimming until the infection has cleared, usually about a week or so after starting treatment, because water can worsen inflammation and wash out drops. Your doctor will advise when it is safe to return.

Is swimmer's ear contagious?

No. Swimmer's ear is not spread from person to person. It develops when moisture and skin damage in your own ear canal allow bacteria or fungi to grow, so sharing a pool with someone who has it is not a risk.

How long does swimmer's ear take to heal?

With proper cleaning and ear drops, pain usually improves within a few days, and most infections clear within about a week to ten days. Complete the full course of drops even if you feel better sooner.

This answer is general medical information written and reviewed by an ENT specialist. It is not a diagnosis. Please see a doctor for an examination. In an emergency in Korea, call 119.