Swimmer’s ear is treated with prescription ear drops that kill bacteria and reduce swelling, and most cases clear up within 7 to 10 days. There are also effective steps you can take at home to ease pain and speed recovery, especially if you catch it early.
The infection happens when water lingers in your ear canal, stripping away the protective layer of earwax and creating a warm, moist environment where bacteria thrive. The two bacteria most responsible are Pseudomonas aeruginosa and Staphylococcus aureus. About 10% of cases involve a fungus instead. Your ear canal is the only skin-lined dead end in your body, with very thin skin over cartilage and bone, so it’s easily irritated and slow to defend itself once that waxy barrier is gone.
How Prescription Drops Work
Topical antibiotic drops are the standard treatment. Your doctor will typically prescribe one of several formulations: some contain an antibiotic alone, while others combine an antibiotic with a steroid to bring down inflammation faster. The steroid component can noticeably speed up pain relief. Most prescriptions call for drops two to four times a day for 7 to 10 days, though full symptom resolution sometimes takes up to four weeks in stubborn cases.
If your ear canal is very swollen, the doctor may place a small sponge wick inside it. The wick absorbs the drops and carries them deeper into the canal where they’re needed most. As the swelling goes down over a day or two, the drops can reach the infected area on their own and the wick falls out or is removed.
Applying Ear Drops the Right Way
Getting the drops deep enough matters more than most people realize. Lie on your side or tilt your head so the affected ear faces the ceiling. For adults and children over three, gently pull the outer ear upward and backward to straighten the canal. For children under three, pull it downward and backward instead. Squeeze the drops along the side of the canal wall rather than straight down. This lets air escape as the liquid flows in.
After the drops are in, stay in that position for at least two minutes. Gently press the small flap of skin in front of your ear opening (the tragus) or wiggle the outer ear to help the drops travel inward. Sitting up too soon lets the medication drain right back out.
Pain Relief at Home
Swimmer’s ear can be surprisingly painful because the skin in the canal sits directly on cartilage and bone with little cushioning. Over-the-counter pain relievers like ibuprofen or acetaminophen help take the edge off while you wait for the drops to work. A warm cloth held against the outer ear can also provide some comfort.
Keep the ear as dry as possible during treatment. Avoid swimming, and use a cotton ball lightly coated with petroleum jelly in the ear opening when you shower. Don’t insert cotton swabs, fingers, or anything else into the canal. Even scratching an itch can break the skin and make the infection worse.
A Homemade Preventive Solution
A simple mixture of one part white vinegar to one part rubbing alcohol can help prevent swimmer’s ear before it starts. The alcohol promotes drying while the vinegar restores the ear canal’s natural acidity, making it harder for bacteria and fungi to grow. Pour about 1 teaspoon (5 milliliters) into each ear before and after swimming, then let it drain back out.
One important caution: do not use this mixture, or any drops, if you suspect a hole in your eardrum. Signs of a perforated eardrum include sudden sharp pain, hearing loss, or fluid draining from the ear after an injury or pressure change. Alcohol and vinegar in a perforated ear can cause intense pain and damage to the middle ear structures.
Keeping It From Coming Back
Earwax is your ear canal’s first line of defense. It repels water and inhibits bacterial growth, so resist the urge to clean it out with swabs or your fingertip. The canal is self-cleaning; wax naturally migrates outward on its own.
After swimming or bathing, tilt your head to each side and let water drain. If moisture stays trapped, the CDC recommends using a hair dryer on the lowest heat and fan setting, held several inches from the ear, to gently evaporate it. This is especially useful for people with narrow or curved ear canals where water tends to pool.
If you swim frequently and get repeated infections, custom-fitted swim molds from an audiologist or even over-the-counter silicone earplugs can make a real difference. Avoiding headphones or earbuds during an active infection also helps, since they trap moisture and press against inflamed skin.
Signs the Infection Is Getting Serious
Most swimmer’s ear resolves without complications, but in rare cases, particularly in people with diabetes or weakened immune systems, the infection can spread into the bone surrounding the ear canal. This is called malignant otitis externa, and it requires aggressive treatment in a hospital setting.
Warning signs that the infection has moved beyond the ear canal include facial weakness on the affected side, difficulty swallowing, loss of voice, decreased consciousness, or pain that keeps getting worse despite several days of treatment. These symptoms warrant emergency care. Even without those red flags, an infection that isn’t improving after three or four days of prescribed drops should be re-evaluated, since the bacteria may be resistant or a fungal cause may need different treatment.