Swimmer's ear (otitis externa) is an inflammation from an infection of the external ear canal. Swimmer's ear is most often caused by bacteria. It may also be caused by fungi. Water that stays in the ear canal during swimming, for instance, may let bacteria and fungi grow.

Many things can make it more likely for your child to get swimmer's ear. Swimming or being in other wet, humid conditions are common causes. Other possible conditions that may lead to swimmer's ear include:

• Rough cleaning of the ear canal.
• Injury to the ear canal.
• Dry skin in the ear canal.
• Foreign object in the ear canal.
• Too much earwax.
• Skin conditions such as eczema and other kinds of dermatitis.

Children are more likely to get swimmer's ear if they:

• Go swimming for long periods of time, especially in lake water. This is less likely in correctly maintained recreational pools or in the ocean.
• Fail to remove excess moisture after swimming.
• Injure the ear canal, such as cleaning it too often or scratching it.
• Use hearing aids, earphones, or swimming caps.
• Have skin irritation from allergies or other skin conditions.
• Have a narrow ear canal.

Swimmer's ear can cause:

• Redness of the outer ear.
• Itching in the ear.
• Pain, especially when touching or wiggling the ear lobe.
• Drainage from the ear.
• Swollen glands in the neck.
• Swollen ear canal.
• Muffled hearing or hearing loss.
• Full or plugged-up feeling in the ear.

The symptoms of swimmer's ear may seem like those of other health conditions. Make sure your child sees their doctor for a diagnosis.

Your child's doctor will ask questions about your child's health history and current symptoms. They will examine your child, including the ears. The doctor may use a lighted tool called an otoscope to look in your child's ear. This will help the doctor know if there is also an infection in the middle ear called otitis media. This infection often doesn't occur with swimmer's ear, but some children may have both types of infections.

Your child's doctor may also take a culture from the ear drainage to help figure out the best treatment.

Treatment will depend on your child's symptoms, age, and general health. It will also depend on how severe the condition is.

Swimmer's ear, when correctly treated by a doctor, often clears up in 7 to 10 days. Treatment may include:

• Antibiotic ear drops.
• Corticosteroid ear drops.
• Pain medicine.
• Keeping the ear dry.

Problems from swimmer's ear include:

• Short-term (temporary) hearing loss from a swollen and inflamed ear canal.
• Ear infections that keep coming back.
• Bone and cartilage damage.
• Infection of the tissue around the ear.
• Infections that spread from the ear to the bones of the head or skull.

Here are some tips to help prevent swimmer's ear:

• Use earplugs for swimming or bathing.
• Dry ears well, especially after swimming. You can buy drops over-the-counter to use after swimming to dry out the ear canals. Ask your doctor if these are safe for your child.
• Pull your child's earlobe in different directions while their ear is tilted downward to help water drain out.
• Don't use cotton swabs in the ears or try to remove earwax.

Another tip to help dry the ears is to use a hair dryer set to the low or cool setting. Hold the dryer at least 12 inches from your child's head. Wave the dryer slowly back and forth. Don't hold it still.

• Swimmer's ear is also called otitis externa. It is an inflammation caused by infection of the external ear canal.
• Water that stays in the ear canal during swimming may let bacteria and fungi grow.
• Swimmer's ear often clears up in 7 to 10 days when treated.
• To help prevent swimmer's ear, dry your child's ears well after swimming or bathing.

Tips to help you get the most from a visit to your child's doctor:

• Know the reason for the visit and what you want to happen.
• Before your visit, write down questions you want answered.
• At the visit, write down the name of a new diagnosis and any new medicines, treatments, or tests. Also write down any new instructions your doctor gives you for your child.
• Know why a new medicine or treatment is prescribed and how it will help your child. Also know what the side effects are.
• Ask if your child's condition can be treated in other ways.
• Know why a test or procedure is recommended and what the results could mean.
• Know what to expect if your child does not take the medicine or have the test or procedure.
• If your child has a follow-up appointment, write down the date, time, and purpose for that visit.
• Know how you can contact your child's doctor after office hours. This is important if your child becomes ill and you have questions or need advice.