Swimmer's ear is an infection of the outer ear canal. Prevention focuses on limiting moisture that remains in the canal and avoiding damage to the skin inside the ear. Ear plugs can help, but they are only one part of the routine.
Quick answer: CDC guidance recommends keeping ears as dry as possible, considering ear plugs or custom swim molds, drying ears thoroughly after swimming, and avoiding objects placed in the ear canal.

Keep Water Out When You Can
The CDC lists a bathing cap, ear plugs, and custom-fitted swim molds as ways to help keep ears dry. The right option is the one that fits securely without causing pressure or needing to be pushed deeply into the ear.
See the CDC's current guidance for preventing swimmer's ear.
| Decision area | What to check | Why it matters |
|---|---|---|
| Before swimming | Use a secure swimming ear plug or swim mold if appropriate | Reducing water entry can reduce the amount of moisture left in the canal. |
| After swimming | Tilt the head, allow water to drain, and dry the outer ear | Removing retained moisture is a core part of CDC prevention guidance. |
| Ear care | Avoid putting cotton swabs or other objects into the ear canal | Objects can irritate or damage the canal skin and interfere with its natural protection. |
Dry the Outer Ear Gently
After swimming, tilt the head so each ear faces downward and allow water to drain. Dry the outside with a towel. CDC guidance also describes using a hair dryer on the lowest heat and speed setting, held several inches away, when water remains.
Be Careful With Ear-Drying Drops
CDC says to check before using ear-drying drops and not to use them when you have ear tubes, a punctured eardrum, swimmer's ear, or ear drainage. That condition-based limit matters more than a generic “after every swim” rule.
Do Not Put Objects in the Ear Canal
Cotton swabs and other objects can remove protective earwax or irritate the canal. Clean only as directed and avoid scratching inside the ear.
Choose Ear Plugs for Fit and Water Use
A swim plug should stay in place through head movement without painful pressure. Reusable, moldable, and custom options can all work when they fit properly. The neighboring swimming ear plug guide focuses on that buying and fit decision.
Frequently Asked Questions
Can ear plugs prevent swimmer's ear?
They can help keep the ear canal dry, which is part of prevention. CDC also recommends drying the ears thoroughly after water exposure and avoiding objects in the canal.
Should I use ear-drying drops after every swim?
Not automatically. CDC advises checking before use and avoiding drying drops with ear tubes, a punctured eardrum, swimmer's ear, or ear drainage.
Can I clean water out with cotton swabs?
CDC advises against putting objects such as cotton swabs into the ear canal. Let water drain and dry the outer ear instead.
