Dog ear infections after swimming are a common concern for pets that enjoy pools, lakes, ponds, or frequent baths. Moisture trapped in the ear canal can irritate the skin and create conditions where yeast or bacteria may overgrow. Water alone is not always the full cause, though. Allergies, ear shape, wax buildup, skin inflammation, and previous infections can all increase risk.
At All Pets Medical, the goal is to identify why the ear is inflamed, not just treat the latest flare-up. Owners who already follow water safety tips for dogs should also know how to protect the ears after water play.
Why Dog Ear Infections After Swimming Develop
Dog ear infections after swimming often involve inflammation of the outer ear canal, called otitis externa. Moisture can soften the skin inside the ear canal, especially when the ear stays damp after swimming or bathing. Dogs with floppy ears, narrow ear canals, heavy ear hair, allergies, or chronic skin issues may be more likely to develop irritation.
Ear infections are painful. A dog that is shaking the head, scratching, pulling away from touch, or rubbing the ear on furniture may be uncomfortable. Repeated home cleaning without a diagnosis can make the ear more irritated and delay proper care.
Signs of Otitis Externa in Dogs
Signs of otitis externa in dogs may include head shaking, scratching, odor, discharge, redness, swelling, crusting, scaly skin, or sensitivity around the ear. Some dogs hold one ear lower than the other. Others may seem tired, irritable, or less interested in play.
Dog ear infections after swimming may appear within a day or two, but signs can also develop more gradually. If the problem keeps coming back, the dog may need testing for yeast, bacteria, mites, foreign material, or underlying allergies. The right treatment depends on what is actually present.
Safe Dog Ear Cleaning After Water Play

Dog ear cleaning should be gentle and appropriate for the individual pet. After swimming or bathing, owners can dry the outer ear flap and visible ear opening with a soft towel. Some dogs benefit from a veterinarian-recommended ear cleaner, especially if they swim often or have a history of ear problems.
Do not push cotton swabs deep into the ear canal. Avoid alcohol, hydrogen peroxide, essential oils, and leftover ear medications unless the veterinary team has approved them. If the eardrum is damaged or the ear canal is severely inflamed, certain products may be unsafe.
Dogs with itchy skin, paw licking, or recurring ear inflammation may have allergy-related disease. Related behavior, such as licking and chewing, is discussed in Why Does My Dog Lick So Much?, and skin flare-ups are also covered in Skin Diseases in Dogs and Summer Heat Flares.
Dogs That Need Extra Swimming Dog Care
Some dogs need extra swimming dog care because of anatomy or medical history. Retrievers, spaniels, doodles, dogs with heavy ear flaps, and dogs with frequent allergies may need closer monitoring. Dogs with thick hair around the ear canal may also stay damp longer after baths or swimming.
A veterinarian may recommend a cleaning schedule, medicated cleanser, allergy management, or follow-up ear checks for dogs with chronic infections. Preventive care works best when it is tailored to the dog’s breed, ear structure, lifestyle, and medical history.
When to Schedule a Veterinary Exam
Veterinary care is recommended when an ear has odor, discharge, swelling, pain, bleeding, a head tilt, balance changes, or repeated shaking. Owners should also schedule an exam if dog ear infections after swimming happen more than once in a season.
All Pets Medical can examine the ear canal, check the eardrum when possible, evaluate ear samples under the microscope, and recommend treatment based on the cause. This helps avoid guesswork and reduces the chance of recurring discomfort.
Keeping Water Play Comfortable
Swimming can be a healthy activity when owners plan for the ears, skin, paws, and overall safety. After water play, dry the ears gently, watch for head shaking or scratching, and contact the veterinary team if symptoms appear. Dog ear infections after swimming are easier to manage when owners respond early and make prevention part of every swim routine.















