Swimmer’s Ear: Causes, Prevention, and Treatment
Medically reviewed by Christopher McGee, MD | Last Reviewed July, 2026
Swimmer’s Ear: Causes, Prevention, and Treatment
The pool is the best part of summer — unless you come home with that familiar ache deep in your ear. Swimmer’s ear is one of the most common summer conditions we treat, and most of it is preventable.
According to the CDC, swimmer’s ear results in approximately 2.4 million healthcare visits per year in the United States, with an estimated half a billion dollars in direct healthcare costs annually. It peaks sharply during the summer swim season — but with a few simple habits, most cases never have to happen. Summer also brings other health risks, especially during long days outdoors. Knowing the signs of heat exhaustion in children can help parents recognize when normal summer fun may be turning into something more serious.
Here’s what swimmer’s ear is, how to recognize it, how to prevent it, and when to seek care.
What Is Swimmer’s Ear? — and Why It’s Not the Same as a Regular Ear Infection
Swimmer’s ear — medically called acute otitis externa (AOE) — is an infection of the outer ear canal: the tube that runs from your eardrum to the outside of your ear. It develops when water stays in the ear canal too long, softening the skin and creating conditions where bacteria can overgrow.
A middle ear infection (otitis media) is completely different — it occurs behind the eardrum and typically follows a cold or upper respiratory illness. These two conditions require different treatments, so distinguishing them matters.
| Feature | Swimmer’s Ear (Outer Ear) | Middle Ear Infection | Key Difference |
| Location | Outer ear canal | Behind the eardrum | Outer vs. inner side of eardrum |
| Primary cause | Water trapped in ear canal | Cold or respiratory virus | Water vs. illness |
| Signature symptom | Pain when pulling outer ear or pressing tragus | Deep ear pain, often with fever | Outer ear tenderness is the tell |
| Fever | Rarely | Common in children | Swimmer’s ear usually has no fever |
| Discharge | Possible — clear or yellow | If eardrum bursts | Different appearance |
| Treatment | Prescription antibiotic ear drops | Watchful waiting or oral antibiotics | Drops vs. oral medication |
Based on CDC guidance on swimmer’s ear and middle ear infections.
Swimmer’s Ear Symptoms: How to Recognize It
According to the CDC, swimmer’s ear symptoms typically appear within a few days of water exposure and include:
- Itchiness inside the ear canal — often the first symptom, appearing 1–2 days after exposure
- Redness and swelling of the outer ear
- Pain when the outer ear is tugged or when pressure is applied to the tragus — the small cartilage flap in front of the ear canal. This is the most reliable clinical sign.
- Discharge or drainage from the ear canal — may be clear, white, or yellow
- A feeling of fullness or muffled hearing — from swelling narrowing the canal
The home diagnostic test: gently pull the outer ear upward and backward, or press on the tragus. If this causes pain, swimmer’s ear is likely. This outer ear tenderness is the key feature that distinguishes swimmer’s ear from a middle ear infection.
What Causes Swimmer’s Ear — and Who’s Most at Risk
Swimmer’s ear occurs when moisture is trapped in the outer ear canal long enough for bacterial growth to begin. The most common culprits are Pseudomonas aeruginosa and Staphylococcus species.
Risk factors:
- Frequent swimming, especially in pools, lakes, or ocean water
- Narrow or curved ear canals that retain water more easily
- Using cotton swabs — these scratch the canal lining and push bacteria deeper
- Using earbuds, hearing aids, or swim caps that trap moisture
- Eczema or other skin conditions affecting the ear canal
- Excessive earwax removal — earwax protects the canal from infection
How to Get Water Out of Your Ear After Swimming
Proper post-swim ear drying is the most effective prevention step. The CDC recommends:
- Tilt your head to each side, ear facing down — let gravity help drain the canal
- Pull the earlobe in different directions while the ear faces down — this opens the canal for drainage
- Use a towel to dry the outer ear gently — without inserting it into the canal
- If water remains, use a hair dryer on the lowest heat and fan setting, held several inches away — gentle warm air evaporates residual moisture
Never insert cotton swabs, fingers, or any objects into the ear canal to dry it — the CDC specifically identifies this as a risk factor for swimmer’s ear.
How to Prevent Swimmer’s Ear
The CDC identifies these as the most effective prevention steps:
- Use earplugs, a bathing cap, or custom-fitted swim molds to keep water out during swimming
- Dry ears thoroughly after every swim using the steps above — this is the most important prevention habit
- Never insert anything into the ear canal — including cotton swabs
- If you’re prone to recurrent swimmer’s ear, ask your provider about using alcohol-based ear drying drops after swimming. A 1:1 mixture of rubbing alcohol and white vinegar can help, but do not use if you have ear tubes, a punctured eardrum, or existing ear drainage.
Summer fun doesn’t always stop at the pool. If being outside is part of your routine, check out our guide to exercising safely in summer heat for tips to stay active when temperatures rise.
Can Swimmer’s Ear Go Away on Its Own?
Swimmer’s ear will not reliably resolve without treatment — and attempting to wait it out typically makes it worse. Most cases of swimmer’s ear require prescription antibiotic ear drops to clear the infection. Without treatment, the infection in the ear canal continues to develop, pain typically intensifies, and there is a small but real risk of the infection spreading to surrounding tissue.
Very early, mild swimmer’s ear — just starting with slight itching — may respond to careful drying and avoiding further water exposure. But once pain, swelling, or discharge are present, antibiotic drops are the appropriate treatment.
Swimmer’s Ear Treatment: What Works — and What Doesn’t
What is the fastest way to treat swimmer’s ear?
Prescription antibiotic ear drops are the fastest and most effective treatment for swimmer’s ear — significantly more effective than any over-the-counter option. Most people with confirmed swimmer’s ear see substantial improvement within 24–48 hours of starting drops. ExperCARE can evaluate and prescribe ear drops the same visit with no appointment needed.
Home care steps while seeking or awaiting prescription drops:
- Keep the ear completely dry — no swimming, and cover the ear when showering
- A warm compress held against the outer ear can temporarily reduce pain
- OTC pain relievers (ibuprofen or acetaminophen) for pain management
- Do not insert cotton swabs, OTC drops not prescribed for this condition, or any objects into the ear
Over-the-counter alcohol-based drying drops may help in the very earliest stage, before infection is established. Once pain and swelling are present, OTC drops are not sufficient — prescription antibiotic drops are needed.
Frequently Asked Questions
What is the difference between swimmer’s ear and an ear infection?
Swimmer’s ear (acute otitis externa) is an infection of the outer ear canal caused by water exposure. A middle ear infection (otitis media) is an infection behind the eardrum, typically following a cold or virus. The key tell: swimmer’s ear causes pain when you touch or pull the outer ear. A middle ear infection causes deep internal ear pain, often with fever. Treatment is different for each.
How do I know if I have swimmer’s ear?
The most reliable sign: pain when you gently pull the outer ear upward or press the small cartilage flap in front of the ear canal (the tragus). Other signs include itching inside the canal, redness of the outer ear, a feeling of fullness, discharge, and muffled hearing — typically appearing 1–2 days after swimming.
Can swimmer’s ear go away on its own?
No — swimmer’s ear will not reliably resolve without treatment and typically worsens over time. Most cases require prescription antibiotic ear drops to clear the bacterial infection. Waiting it out risks increasing pain, worsening swelling, and in rare cases, spread of infection. If you have symptoms of swimmer’s ear, see a provider for evaluation and ear drops.
What is the fastest way to treat swimmer’s ear?
Prescription antibiotic ear drops are the most effective treatment and produce significant improvement within 24–48 hours for most people. OTC ear drying drops are not effective once an infection is established. ExperCARE can evaluate and prescribe drops the same day, no appointment needed.
How do I get water out of my ear after swimming?
Tilt your head to each side with the ear facing down and gently pull the earlobe in different directions to help the canal drain. Dry the outer ear with a towel. If water persists, use a hair dryer on the lowest heat setting held several inches away. Never use cotton swabs inside the ear canal — this is a leading risk factor for swimmer’s ear, per CDC guidance.
When should I see a doctor for swimmer’s ear?
See a provider if you have pain when touching or pulling the outer ear, discharge from the ear, muffled hearing, or symptoms that aren’t improving after 24–48 hours. Don’t wait — swimmer’s ear that goes untreated typically worsens and can occasionally spread to surrounding tissue. Urgent care can diagnose and prescribe drops the same visit.
Bottom Line
Swimmer’s ear is common, predictable, and very treatable — but it doesn’t go away on its own. The right prevention habits (earplugs, thorough drying, nothing in the ear canal) prevent most cases. When it does develop, prescription antibiotic ear drops are the solution, not waiting it out.
If your ear hurts when you pull it or press the cartilage in front of the canal, come in. We can evaluate it and get you drops the same visit.
| Ear Aching After Swimming?
ExperCARE can diagnose and treat swimmer’s ear the same day — no appointment needed. Prescription ear drops are the fastest path to relief, and we can prescribe them on the spot. |
