How Do I Prevent Swimmer's Ear After Swimming?

The core of prevention is simple: get the water out and keep it out. Swimmer’s ear develops when moisture sits in the ear canal long enough for bacteria to multiply, so drying thoroughly after every swim does most of the work.

Tilt your head to each side to let water drain, dry the outer ear with the corner of a towel, and do not put anything inside the canal. Clean, properly balanced pool water helps as well.

Dry your ears every single time

After getting out, tilt your head sharply toward one shoulder and hold it for a few seconds, then repeat on the other side. Gently tugging the earlobe while tilted helps straighten the canal and lets trapped water run out.

Dry the outer ear and the entrance to the canal with the corner of a towel. A hair dryer on the lowest heat and lowest speed, held well away from the ear, is another option some people find effective.

The point is that a canal which is damp for hours is a much friendlier environment for bacteria than one that is dry within a few minutes.

Never use cotton swabs

This is the single most common mistake. A cotton swab pushes wax and debris deeper into the canal rather than removing it, and it scratches the delicate skin lining the canal. Those small abrasions are exactly where infection takes hold.

Earwax is protective. It is mildly acidic and water repellent, and stripping it out with aggressive cleaning removes a natural defense. Leave the inside of the ear alone.

Drying drops and physical barriers

Over-the-counter ear drying drops, typically alcohol and acetic acid based, evaporate residual moisture and restore the canal’s acidity. Used after swimming they are effective for people who get repeat infections.

There are important exceptions. Do not use drying drops if you have ear tubes, a perforated eardrum, a current ear infection, or any drainage from the ear. If you are unsure whether they are appropriate for you, ask your doctor first.

Well-fitted swim earplugs or a swim cap that covers the ears are a reasonable option for frequent swimmers, particularly children who are prone to ear infections. Get plugs that fit properly, since loose ones simply trap water instead of excluding it.

Water quality is part of the picture

Properly sanitized and balanced water reduces the bacterial load your ears are exposed to in the first place. A pool holding an appropriate free chlorine residual with pH in the correct range is a far lower risk environment than one that has been allowed to slip.

Pseudomonas, the bacterium most commonly behind swimmer’s ear, thrives in warm, poorly sanitized water. This is one of many reasons that a warm pool with weak chlorine is worth taking seriously rather than shrugging off.

If your pool has visible cloudiness, algae, or a strong chemical smell that suggests chloramines, treat that as a water quality problem to correct before anyone swims again.

When to see a doctor

Ear pain, itching that persists, discharge, swelling, fever or any change in hearing all warrant a visit to a doctor. Swimmer’s ear is usually straightforward to treat when caught early and considerably less pleasant when it is not. Nothing here is a substitute for medical advice, and a doctor should be the one to evaluate an ear that hurts.

Why it comes up so often in the Keys

We swim year round here, so there is no off season that gives ears a break. Warm water and warm air both work against fast drying, and the humidity means a damp ear canal stays damp longer than it would in a dry climate.

Plenty of people here also split their time between pools and the ocean or canals, and open water carries a different and generally higher bacterial load. The drying routine matters even more after a day on the water.

Build the head tilt and towel dry into your habit the way you would rinsing off. Thirty seconds after every swim prevents most cases.