The most reliable way to keep water out of your ears while swimming is to wear well-fitted earplugs, but the type you choose and how you use them matters. Water gets trapped in the ear canal because of surface tension: water molecules stick together and form a curved seal called a meniscus that sits stubbornly in place despite gravity. That trapped moisture creates the perfect environment for bacteria to grow, which is exactly how swimmer’s ear develops.
Why Water Gets Stuck in the First Place
Your ear canal isn’t a straight tube. It has a slight S-curve, and its walls are lined with skin that water clings to easily. When you submerge your head, water fills the canal and the surface tension between water molecules holds it there like a plug. Tilting your head to the side after a swim sometimes works, but not always, especially if the canal is narrow or has a sharp bend.
Earwax actually plays a protective role here. It acts as a natural barrier to moisture and limits bacterial growth. This is why aggressively cleaning your ears with cotton swabs before swimming can backfire: you strip away the very coating that helps repel water and fight infection.
Choosing the Right Earplugs
Not all earplugs block water equally. The three main options each work differently, and the best choice depends on how often you swim and how sensitive your ears are.
- Wax or moldable silicone plugs: You shape a ball of material and flatten it over the opening of the ear canal. They don’t go inside the canal itself. They’re inexpensive, disposable, and form a decent seal for casual swimmers. Read the packaging carefully, since they’re designed to cover the ear opening rather than insert into it.
- Pre-formed silicone plugs: These are manufactured in a general ear shape with flanges that sit inside the canal. They’re reusable and more secure than moldable plugs, but ear canals vary widely in size. A plug that fits one person perfectly may leak for another, so you may need to try a couple of brands.
- Custom-molded plugs: An audiologist takes an impression of your ear and creates plugs that match your canal exactly. They provide the most consistent, comfortable seal and last for years. If you swim multiple times a week or have a history of ear infections, custom plugs are worth the investment.
Swim Caps and Headbands
A snug swim cap that covers the ears adds another layer of protection, though most standard caps don’t create a watertight seal on their own. They work best as a backup layer over earplugs, keeping the plugs in place and reducing how much water reaches the ear opening in the first place.
Neoprene headbands designed specifically for swimming wrap around the head and press against both ears. They’re popular for children and for anyone who finds earplugs uncomfortable. On their own, they reduce water entry but don’t eliminate it completely during dives or vigorous strokes. Pairing a headband with moldable plugs gives you the strongest barrier short of custom molds.
Technique Adjustments in the Water
How you move in the water affects how much gets into your ears. Keeping your head above water during breaststroke or sidestroke limits exposure. If you swim freestyle, rotating your head smoothly to breathe rather than plunging it back under reduces the force driving water into the canal.
Diving and jumping in feet-first send a rush of water directly into the ears. If you’re prone to trapped water, entering the pool gradually or pressing a cupped hand over each ear before submerging can reduce how much floods in.
Drying Your Ears After Swimming
What you do in the five minutes after leaving the pool matters as much as what you wore in it. Tilt your head to each side and gently pull the earlobe in different directions to help water drain. A low setting on a hair dryer held about a foot from the ear can evaporate remaining moisture without irritating the skin.
A simple homemade drying solution also helps. Mix equal parts white vinegar and rubbing alcohol. Pour about one teaspoon (roughly 5 milliliters) into each ear, let it sit for a moment, then tilt your head to let it drain out. The alcohol speeds evaporation while the vinegar creates an acidic environment that discourages bacterial and fungal growth. You can use this before and after swimming as a preventive step. Do not use this mixture if you have a perforated eardrum or have had recent ear surgery.
Keeping Reusable Plugs Clean
Reusable earplugs can harbor bacteria if you toss them back in your swim bag wet. After each use, wipe them down with a soft damp cloth. Check regularly for earwax buildup and use a soft brush or the cleaning tool that came with them to clear debris. Disinfect periodically with a non-alcohol disinfectant wipe. Avoid solvents or harsh chemicals, which degrade silicone and rubber over time. Let the plugs air-dry completely before storing them in a ventilated case.
Ear Tubes and Perforated Eardrums
If your child has ear tubes (tympanostomy tubes), you may have been told to keep water out of their ears at all costs. Current guidelines from the American Academy of Otolaryngology actually take a more relaxed stance. Routine water precautions like mandatory earplugs or avoiding swimming are no longer recommended for most children with ear tubes. The preferred approach is to allow unrestricted water activity first and only introduce precautions if problems develop.
Exceptions exist. Children who have recurring ear drainage, especially infections involving certain resistant bacteria, those with immune system issues, or those who experience ear pain while swimming should use water protection. The same goes for swimming in lakes, rivers, or other untreated water, and for deep diving, where water pressure forces fluid deeper into the canal. For these situations, custom-molded plugs paired with a headband offer the best defense.
Adults with a known eardrum perforation should avoid getting water into the ear canal entirely, since water can pass through the hole into the middle ear and cause infection. Moldable wax plugs that seal over the canal opening, rather than inside it, are typically the safest option here.
Building a Simple Routine
The most effective approach combines a few of these strategies rather than relying on just one. Before you swim, insert earplugs that fit your ears well and consider applying the vinegar-alcohol drops if you’re infection-prone. In the water, be mindful of how your head enters and exits. After swimming, tilt and drain, dry with a towel or hair dryer, and apply drops again if needed. Clean your plugs and let them dry before your next session. That consistent routine is what keeps water out reliably, not any single product or trick on its own.