Q. Do you know of any good, safe ways of dealing with swimmer’s ear? I can usually feel it coming on (often within a couple days of clearing out ear wax or swimming in a lake or pond). I’d like to be able to clear it up before I need to see a doctor and get some antibiotic.

What Is Swimmer’s Ear?

A. When water gets trapped in the ear, it can lead to an infection in the outer ear. This is called otitis externa, or more commonly swimmer’s ear. It often occurs after getting water in the ear or injuring it with a cotton swab or fingernail. Bacteria in the water used for swimming may lead to such infections (Hlvasa et al, MMWR Morbidity and Mortality Weekly Report, May 18, 2018).

To tell if the pain is from the outer ear or from the middle ear (behind the ear drum), pull gently on the earlobe. This will increase the pain from swimmer’s ear but won’t change the pain from a middle ear infection (otitis media).

Safe Ways of Dealing with Swimmer’s Ear:

If you have pain from swimmer’s ear, you need to see a doctor. Prescription ear drops containing a corticosteroid and an antibiotic or an antifungal agent can clear up such infections quickly.

Prevention is your best medicine, though. Rinsing the ear with a few drops of a solution of half white vinegar and half rubbing alcohol can help dry out excess moisture after swimming.

Getting Water Out to Prevent Swimmer’s Ear:

Q. My brothers and sisters and I were all on a swim team for most of our young lives. The swim coach had us get out of the pool and lie on the warm pavement with one ear to the ground. We counted to 60 (one minute) and then turned the other ear down. I did this with my kids: no swimmer’s ears.

My father-in-law, who swam every day, used an eye dropper and put a couple of drops of vodka in his ears when he climbed out of the pool. He never had a bad ear either. These are safe ways of dealing with swimmer’s ear

A. With the start of summer, parents make it a high priority to prevent swimmer’s ear. Your approach has the advantage of being both free and easy, with no side effects.

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Ear Drops to Prevent Swimmer’s Ear:

Ear drops such as Swim-EAR containing alcohol and glycerin can prevent infection by helping to evaporate water from the ear canal. You can also make your own ear drops.

One reader reported:

“I haven’t had swimmer’s ear for some time. I do use a home formula for drops. It’s 45 percent alcohol, 45 percent vinegar, 10 percent glycerin.”

A more common formula is half alcohol and half white vinegar.

Ear Plugs May Help Prevent Swimmer’s Ear:

Some swimmers find that customized molded ear plugs can keep water out of the ears and prevent the problem.

However, a reader cautioned:

“One must be very careful in using ear plugs when swimming. Any scuba diver will tell you that compensating for pressure is a very important aspect of underwater activity. As the diver descends below the surface, the outside pressure increases, The ear has a away of allowing pressure to equalize so that the ear drum does not become stressed, but if you block the ear canal with an ear plug the plug may be forced into the canal causing pressure on the ear drum and extreme pain. The plug may be forced far enough into the ear to make it difficult to remove. The takeaway: ear plugs should be used only for surface swimming.”

Chewing Gum to Help Prevent Swimmer’s Ear:

One mother wrote us:

“Otitis Externa: When my daughter started swimming with a league 15 years ago, she developed swimmer’s ear. I looked online and found a Finnish study that recommended chewing Trident gum with xylitol in it after swimming, as that opened up the Eustachian tubes and the xylitol had some small preventative effect. She tried it and it worked for the next 4 years!

“I myself started lap and lake swimming and I always had plenty of Trident gum handy to chew immediately after getting out of the water.”