Swimmer's Ear (Otitis Externa)

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About Swimmer's Ear

Otitis externa — commonly known as swimmer's ear — is an infection of the ear canal, the tubular opening that carries sounds from the outside of the body to the eardrum. It can be caused by many different types of bacteria or fungi.

The infection commonly occurs in kids who spend a lot of time in the water. Too much moisture in the ear can irritate and break down the skin in the canal, allowing bacteria or fungi to penetrate. In temperate climates, otitis externa occurs more often in summertime, when swimming is common.

But you don't have to swim to get swimmer's ear. Anything that causes a break in the skin of the ear canal can lead to an infection. Dry skin or eczema, scratching the ear canal, vigorous ear cleaning with cotton-tipped applicators, or inserting foreign objects like bobby pins or paper clips into the ear can all increase the risk of developing otitis externa.

And if someone has a middle ear infection, pus collected in the middle ear can drain into the ear canal through a hole in the eardrum and cause otitis externa.

Signs and Symptoms

The primary symptom of otitis externa is ear pain, which can be severe and gets worse when the outer part of the ear is pulled or pressed on. It also may be painful for someone with otitis externa to chew. Sometimes the ear canal itches before the pain begins.

Swelling of the ear canal might make a child complain of a full or uncomfortable feeling in the ear. The outer ear may become reddened or swollen, and lymph nodes around the ear can become enlarged and tender. Some discharge from the ear canal is possible; it might be clear at first and then turn cloudy, yellowish, and pus-like.

swimmers ear illustration

Hearing might be temporarily affected if pus and debris or swelling of the canal blocks the passage of sound into the ear. Fever isn't common in most cases, and otitis externa is not contagious.

Prevention

Using over-the-counter drops of a dilute solution of acetic acid or alcohol in the ears after swimming can help prevent otitis externa, especially if a child is prone to the infection. These drops are available at pharmacies and should only be used in kids who do not have ear tubes or a hole in the eardrum.

After time in the water, kids should gently dry their ears with a towel and help water run out of their ears by turning their heads to the side.

To avoid trauma to the ear, kids should not clean their ears themselves. Also, never put objects into kids' ears, including cotton-tipped applicators.

Professional Treatment

Treatment of otitis externa depends on the severity of the infection and how much pain the child feels. For most cases, your doctor may prescribe eardrops that contain antibiotics to fight the infection, mixed with a steroid to reduce swelling of the ear canal. Eardrops are usually given several times a day for 7 to 10 days.

If swelling of the ear canal makes it difficult to give the drops, the doctor may insert a cotton wick into the canal to help carry the medicine inside the ear. In some cases, the doctor may need to remove pus and debris from the ear with gentle cleaning or suction. This will allow the eardrops to work more effectively. For more severe infections, oral antibiotics also may be given, and the doctor may order a culture of some of the discharge from the ear to help identify which bacteria or fungi are causing the infection.

Over-the-counter pain relievers can be used to manage pain. Once treatment has begun, your child will start to feel better in a day or two. Otitis externa is usually cured within 7 to 10 days of starting treatment.

Home Treatment

Otitis externa should be treated by a doctor. If left untreated, the ear pain will get worse and the infection may spread. To help relieve the pain until your child sees the doctor, you can place a warm washcloth or heating pad against the affected ear. Acetaminophen or ibuprofen may also ease discomfort.

At home, follow the doctor's instructions for administering eardrops and oral antibiotics, if they are prescribed. It's important to keep water out of your child's ear during the entire course of treatment. A shower cap offers protection while showering or bathing, and your doctor may also recommend earplugs.

When to Call the Doctor

Call your doctor immediately if your child has any of the following: pain in the ear with or without fever, decreased hearing in one or both ears, or abnormal discharge from the ear.

Reviewed by: Steven P. Cook, MD
Date reviewed: November 2009



Related Resources

Web SiteOtolaryngology Resources on the Internet Recommended resources from the Bobby R. Alford Department of Otorhinolaryngology and Communicative Sciences.
OrganizationCenters for Disease Control and Prevention (CDC) The mission of the CDC is to promote health and quality of life by preventing and controlling disease, injury, and disability. Call: (800) CDC-INFO


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Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.

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