What actually prevents ear infections
Most ear infections happen when fluid gets trapped in the middle ear and bacteria or viruses grow in it. You cannot stop all infections — some come from colds you cannot avoid — but you can reduce how often they happen by keeping water and germs away from your ear canal, managing colds quickly, and not irritating the delicate skin inside your ear.
The strategies that work are straightforward: dry your ears after swimming or bathing, avoid putting things in your ear, and treat upper respiratory infections before they move into your ears. None of these require special equipment or medication. They are habits that lower your risk.
Key Takeaways
- Keep water out of your ears after swimming or showering by tilting your head to drain each ear and using a clean towel or cotton ball.
- Do not insert cotton swabs, hearing aids, earbuds, or fingers deep into your ear canal, as this damages the protective skin lining.
- Treat colds and sinus infections promptly, because fluid buildup in your sinuses can back up into your middle ear.
- If you swim often, consider custom-fitted earplugs or a swim cap that covers your ears to keep water out.
- Avoid secondhand smoke and air pollution when possible, as these irritate the tubes that drain your middle ear.
Drying your ears after water exposure
Water in your ear canal creates a warm, moist space where bacteria thrive. After swimming, showering, or bathing, tilt your head to one side and gently pull your earlobe down and back to straighten the canal. Let gravity drain the water for a few seconds, then repeat on the other side.
If water stays trapped, use a clean corner of a towel to absorb it from the outer ear. You can also use a clean cotton ball held loosely at the opening — do not push it in. If you swim regularly or water gets stuck often, a hair dryer on the lowest setting, held several inches from your ear, can help dry the canal. Never use a cotton swab to dig out water, because you will scrape the skin inside your ear and make infection more likely.
Protecting your ears during swimming
If you swim frequently or have a history of ear infections, earplugs or a swim cap can keep water out. Custom-fitted earplugs made by an audiologist seal better than drugstore versions, but over-the-counter foam or silicone earplugs work for many people. Insert them before you enter the water and remove them gently afterward.
A swim cap that covers your ears is another option, though it does not seal as tightly as earplugs. If you use a hearing aid or cochlear implant, remove it before swimming and dry your ears thoroughly before putting it back in. Moisture trapped under a hearing aid can cause both ear infections and device damage.
Avoiding damage to your ear canal
Your ear canal is lined with thin, delicate skin that protects against infection. Inserting objects into your ear — cotton swabs, bobby pins, fingernails, or earbuds pushed too far — scrapes this lining and creates tiny wounds where bacteria can enter. Even if you do not cause visible damage, you can push earwax deeper into the canal, where it traps moisture and bacteria.
If earwax buildup bothers you, see a doctor or audiologist who can remove it safely. If you wear earbuds, choose ones that sit in the outer ear rather than deep in the canal, and clean them regularly. If you have a hearing aid, follow your audiologist's instructions for insertion and removal to avoid scraping the canal walls.
Managing colds and sinus infections
Colds and sinus infections cause swelling in the tubes that drain your middle ear (called the Eustachian tubes). When these tubes swell shut, fluid backs up and can become infected. Treating a cold or sinus infection early — before fluid accumulates — lowers your risk of an ear infection following it.
If you have a cold, rest, drink fluids, and use saline nasal drops or spray to keep your nasal passages clear. If symptoms last more than a week or get worse, see a doctor. If you have chronic sinus infections, ask your doctor about treatment options, because repeated sinus problems increase your ear infection risk. Avoid smoking and secondhand smoke, which irritate your sinuses and make drainage harder.
When to see a doctor about prevention
If you get ear infections more than three times in six months, or if one infection does not fully clear before another starts, tell your doctor. Frequent infections can mean your Eustachian tubes are not draining well, and your doctor may recommend a procedure or medication to help. Children under three are at higher risk for ear infections, so parents should mention any pattern of infections at checkups.
If you have a condition that affects your immune system, or if you take medications that weaken immunity, your doctor may suggest extra precautions. Likewise, if you have a hole in your eardrum from a past infection, you will need to keep water out of your ear during swimming and bathing — ask your doctor what protection works best for you.
Frequently Asked Questions
Can I use hydrogen peroxide to dry my ears after swimming?
Hydrogen peroxide can help dry your ear canal, but use it only if your eardrum is intact and you have no history of ear problems. Put a few drops in your ear, let it sit for a minute, then tilt your head to drain it. If you have had a perforated eardrum or frequent infections, ask your doctor first.
Do I need prescription earplugs to prevent infections?
No. Over-the-counter foam or silicone earplugs work well for most people. Custom earplugs from an audiologist fit better and seal more tightly, which can help if drugstore versions keep falling out, but they are not necessary for everyone.
Will removing earwax prevent ear infections?
Earwax itself does not cause infections, but if it traps water in your canal, it can contribute to one. If earwax buildup is not bothering you, leave it alone. If it is, have a doctor remove it rather than trying to dig it out yourself.
Can allergies increase my risk of ear infections?
Yes. Allergies cause swelling in your nasal passages and Eustachian tubes, which blocks drainage. If you have seasonal or year-round allergies, treating them with antihistamines or nasal sprays may lower your ear infection risk.