A Healthy Pets of Ohio Guide to Swimming, Allergies & Hidden Ear Problems
If your dog has been shaking their head more than usual lately, scratching at their ears, or suddenly developing a strong odor around their head, summer may be the reason.
At Healthy Pets of Ohio, we see a major increase in ear infections during the warmer months — especially in dogs that swim, spend more time outdoors, or struggle with seasonal allergies. While many pet owners assume ear infections are minor, untreated infections can become extremely painful and may even lead to hearing damage or chronic ear disease over time.
Here’s why ear infections spike during summer in Central Ohio — and what pet owners should watch for.
Why Are Ear Infections More Common During Summer?
Summer creates the perfect environment for bacteria and yeast to grow inside your pet’s ears.
Heat, humidity, moisture, allergens, and outdoor activity all contribute to inflammation inside the ear canal. Once inflammation begins, infections can develop quickly.
The most common summer triggers include:
- Swimming pools, lakes, and ponds
- Humid Ohio weather
- Grass and pollen allergies
- Excess ear moisture after baths
- Dogs with floppy ears trapping heat and moisture
- Increased outdoor activity
Dogs aren’t the only pets affected, either. Cats can develop ear infections too, although they’re generally less common.
Common Signs of an Ear Infection in Dogs
Many ear infections begin subtly. In fact, some owners don’t notice a problem until their pet becomes uncomfortable or painful.
Watch for these symptoms:
Early Warning Signs
- Frequent head shaking
- Scratching at the ears
- Rubbing ears on furniture or carpet
- Redness inside the ear
- Mild odor
More Serious Symptoms
- Dark discharge or buildup
- Swelling of the ear canal
- Crying when ears are touched
- Loss of balance
- Head tilt
- Sensitivity or aggression from pain
If your dog suddenly yelps when you touch their ears, it’s time to schedule a veterinary visit as soon as possible.
Why Swimming Can Trigger Ear Problems
Many Ohio dogs love summer swimming — but water trapped inside the ear canal creates ideal conditions for infection.
This is especially common in:
- Retrievers
- Spaniels
- Labradoodles and Goldendoodles
- Dogs with floppy or hairy ears
Lake water can also introduce bacteria and debris into the ear canal.
At Healthy Pets of Ohio, we often see infections develop just days after:
- Lake trips
- Pool swimming
- Bathing
- Outdoor play during humid weather
Allergies and Ear Infections Are Closely Connected
One of the biggest misconceptions is that ear infections are always caused by dirt or water.
In reality, allergies are one of the leading causes of chronic ear infections in dogs.
When dogs experience seasonal allergies, inflammation develops throughout the body — including the ears.
Common allergy-related signs include:
- Paw licking
- Red skin
- Chronic itching
- Recurring ear infections
- Scooting or skin irritation
If your pet gets repeated ear infections every summer, allergies may be the underlying issue.
Can Ear Infections Go Away on Their Own?
Unfortunately, most ear infections do not resolve without treatment.
In fact, delaying treatment can lead to:
- Deep ear infections
- Ruptured eardrums
- Chronic inflammation
- Hearing loss
- Long-term narrowing of the ear canal
Over-the-counter treatments may temporarily mask symptoms without addressing the actual cause.
That’s why veterinary exams are important — especially if symptoms keep returning.
How Veterinarians Diagnose Ear Infections
At Healthy Pets of Ohio, diagnosing an ear infection involves more than simply looking inside the ear.
Your veterinary team may:
- Examine the ear canal with an otoscope
- Check for swelling or foreign material
- Perform ear cytology to identify yeast or bacteria
- Evaluate for allergy-related inflammation
- Assess for mites or underlying skin disease
Proper diagnosis helps determine the most effective treatment plan.
Tips to Help Prevent Summer Ear Infections
While not every infection is preventable, these habits can help reduce the risk:
Dry Ears After Swimming
Gently dry your dog’s ears after swimming or bathing.
Avoid DIY Ear Cleaning Solutions
Some homemade cleaners can worsen irritation.
Don’t Overclean the Ears
Too much cleaning can actually damage the ear canal.
Stay Current on Allergy Care
Managing allergies often reduces chronic ear problems.
Schedule Exams Early
Treating infections early is easier — and far less painful for your pet.
When Should You Call the Vet?
You should contact your veterinarian if your pet has:
- Persistent head shaking
- Ear odor
- Redness or discharge
- Pain around the ears
- Repeated ear infections
- Sudden balance issues
Ear infections can worsen quickly during summer months, especially in Ohio’s heat and humidity.
Healthy Pets of Ohio Is Here to Help
At Healthy Pets of Ohio, our veterinary teams help diagnose and treat ear infections before they become more serious problems. Whether your pet is dealing with swimming-related irritation, chronic allergies, or recurring infections, early treatment can help keep them comfortable all summer long.
If you notice signs of an ear infection, schedule an exam with your nearest Healthy Pets of Ohio location.
Frequently Asked Questions About Dog Ear Infections
Can swimming cause ear infections in dogs?
Yes. Water trapped inside the ear canal can create a moist environment where bacteria and yeast thrive.
What does a dog ear infection smell like?
Many owners describe the odor as yeasty, sour, or unusually strong.
Are ear infections painful for dogs?
Very. Some dogs become sensitive, withdrawn, or even aggressive due to ear pain.
Can allergies cause dog ear infections?
Absolutely. Allergies are one of the most common underlying causes of recurring ear infections.
Should I clean my dog’s ears regularly?
Some dogs benefit from routine cleaning, but overcleaning can cause irritation. Your veterinarian can recommend the best schedule for your pet.

