How To Prevent Dog Ear Infections In Summer

If your dog has ever tilted their head, scratched at their ears nonstop, or shaken their head like they’re trying to fling something off, you know how miserable an ear infection can make them (and you, dealing with the vet bill). Preventing dog ear infections in summer comes down to one simple culprit: moisture. Heat, humidity, swimming, and sweat all create the perfect warm, damp environment for yeast and bacteria to multiply inside a dog’s ear canal. The good news is that a few consistent habits can dramatically lower the odds your dog ends up with a painful, itchy infection this season.

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Why Summer Raises The Risk Of Dog Ear Infections

A dog’s ear canal is shaped like an L, which is great for protecting the eardrum but terrible for letting water and moisture escape on its own. In summer, several things stack the odds against your dog:

• Heat and humidity naturally encourage yeast and bacteria growth, even without swimming involved.
• Swimming and bath time introduce water directly into the ear canal, and if it doesn’t fully evaporate, it becomes a breeding ground for infection.
• Increased outdoor time means more exposure to pollen, grass, and other seasonal allergens that can irritate the ear and make infections more likely.
• Sweat and general moisture build up faster on hot days, especially in dogs that pant heavily or spend a lot of time outside.

If you’re already working on keeping your dog comfortable when temperatures spike, our guide on how to keep your dog cool in summer pairs well with this one, since a lot of cooling strategies (splash pads, sprinklers, swimming) are exactly what puts ears at risk if you’re not drying them afterward.

Which Dogs Are Most At Risk

Every dog can get an ear infection, but some are far more prone to it, especially in summer:

• Floppy-eared breeds like Cocker Spaniels, Basset Hounds, and Labradors, because their ear flaps trap heat and moisture against the canal.
• Dogs with narrow or hairy ear canals, such as Poodles and Shih Tzus, which restrict airflow.
• Frequent swimmers of any breed, since repeated water exposure is one of the biggest triggers.
• Dogs with allergies, whose ears are already inflamed and more vulnerable to secondary infection.

If your dog fits any of these categories, it’s worth being a little more vigilant during the hottest, wettest months of the year.

A Simple Summer Ear Care Routine

You don’t need a complicated regimen to prevent dog ear infections in summer, just consistency. Here’s a routine that works for most dogs:

• Dry ears after every swim or bath. Gently pat the outer ear and canal opening dry with a clean towel or absorbent wipe. Never use a cotton swab deep in the canal, it can push debris and moisture further in.
• Check ears a few times a week. Healthy ears are pale pink, odor-free, and dry to the touch. Get familiar with what normal looks like so you notice changes fast.
• Clean on a reasonable cadence. Most dogs do well with an ear cleaning every one to two weeks in summer, more often for frequent swimmers, less for dogs with sensitive skin. A good dog ear cleaning solution formulated for regular use helps break down wax and residual moisture without irritating the skin.
• Keep a drying aid on hand. After lake trips, pool days, or a run through the sprinkler, a set of dog ear drying wipes makes it quick and easy to wipe out excess moisture before it has a chance to sit and cause problems.
• Trim or thin excess ear hair on breeds prone to hairy canals, ideally with the help of a groomer, since more hair means more trapped moisture.
• Use soft, absorbent pads for general grooming and cleanup. A stack of cotton pet grooming pads is handy for wiping ears, paws, and faces after outdoor adventures without scratching delicate skin.

Timing Matters

Try to dry your dog’s ears within 15 to 20 minutes of them getting wet. The longer moisture sits in the canal, the more time bacteria and yeast have to establish themselves. If you’re heading out for a beach day or planning to let the kids run the hose, it helps to plan your outing around one of the best splash pads for dogs, since a controlled water source is often easier to manage and dry afterward than an unpredictable lake or pond.

Warning Signs Of A Dog Ear Infection

Catching an infection early makes treatment faster and less uncomfortable for your dog. Watch for:

• Frequent head shaking or tilting
• Scratching at one or both ears
• A strong or unusual odor coming from the ear
• Redness, swelling, or visible discharge (yellow, brown, or black)
• Sensitivity or pain when the ear is touched
• Rubbing the ear against furniture, carpet, or your leg

If you notice any of these signs, it’s time to move from prevention to treatment, and that’s a job for your veterinarian, not a home remedy.

When To See A Vet

This guide is about prevention, not diagnosis or treatment. If you suspect an active infection, or your dog is showing significant discomfort, please see your veterinarian rather than relying on home care alone. Ear infections can have different underlying causes (bacteria, yeast, ear mites, allergies, or a combination), and the wrong treatment can let things worsen or come back quickly. A vet can also check for a ruptured eardrum, which changes what’s safe to use in the ear entirely.

It’s also worth keeping an eye on overall heat safety while you’re focused on ears this summer. Overheating and ear issues often show up during the same hot, active days, so it’s worth reviewing the signs covered in our post on dog heat stroke signs so you know what to watch for beyond just the ears.

The Bottom Line

Preventing dog ear infections in summer really comes down to managing moisture: dry ears after water exposure, check them regularly, clean on a sensible schedule, and know the warning signs so you can act quickly if something looks off. For a broader look at keeping your dog safe through the hottest months, check out our full summer pet safety guide. A little consistency now can save your dog a lot of discomfort, and you a vet visit, later in the season.

Want our full, printable Everyday Dog Wellness Guide? Grab it in our Etsy shop — the same pet-parent-tested advice, all in one place.

Keeping up with your dog’s at-home grooming routine? Don’t forget paw care — see our guide on how to trim dog nails at home.