Dog Ear Infection

Ear infections are common in dogs and can be very uncomfortable. Here's how to spot the signs, when to call your vet, and what you can do at home while your dog waits to be seen.

Talk to a vet

When to call a vet for a dog ear infection

Emergency

Go to the ER now

● Go to an emergency vet right away if your dog has loss of balance, circling, head tilt, rapid eye movements, or trouble standing, which can happen with deeper ear disease.
● Seek urgent emergency care if there is severe swelling of the ear flap, heavy bleeding, or your dog cries out and cannot be touched near the ear.
● Get immediate help if your dog seems weak, collapses, has trouble breathing, or the ear problem started after major trauma.
● Go now if your dog has facial drooping, cannot blink normally, or suddenly seems unable to hear.

Urgent

See a vet within 24 hours

● Call your vet within 24 hours if your dog is shaking their head often, scratching at the ear, rubbing the head on furniture, or acting painful.
● Book a prompt exam if you notice a bad odor, redness, swelling, discharge, or dark debris in the ear.
● Your dog should be seen soon if the ear problem keeps coming back, affects both ears, or happens along with itchy skin or allergies.
● Call your vet promptly if your dog resists having the ear touched, seems restless, or is not sleeping comfortably because of the irritation.
● Puppies and dogs with known chronic ear disease should be checked sooner rather than later.

Monitor

Watch at home, call if it worsens

● If the ear looks normal and your dog only briefly scratches once or twice, you can watch closely for the next 12 to 24 hours.
● Monitor at home if there is no odor, no discharge, no redness, and your dog is otherwise acting normal.
● If your dog recently swam or had a bath, gently keep the ears dry and watch for any new head shaking or discomfort.
● Even mild signs should prompt a vet visit if they do not improve quickly or if anything worsens.

Common Causes of Dog Ear Infection

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Bacteria or yeast overgrowth

Most dog ear infections involve bacteria, yeast, or both. These organisms often grow when the ear canal becomes inflamed and trapped moisture or debris builds up.

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Allergies

Environmental or food allergies are a very common underlying cause of recurring ear trouble. Dogs with itchy skin often get ear disease too.

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Moisture after swimming or bathing

Wet ears can create an environment where yeast and bacteria thrive. Dogs with floppy ears may be especially prone because the canal stays damp longer.

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Foreign material

Grass awns, dirt, or other debris can irritate the ear canal and trigger sudden pain, inflammation, and infection.

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Ear mites or parasites

Ear mites are less common in adult dogs than in cats, but they can still cause dark debris, itching, and inflammation, especially in puppies.

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Breed and body factors

Dogs with long, floppy, narrow, or hairy ear canals may develop infections more easily. Hormonal disease and chronic skin disease can also contribute.

What to Do at Home

A true ear infection usually needs veterinary diagnosis and treatment, especially because the cause may be yeast, bacteria, parasites, allergies, or a foreign object. Home care should focus on keeping your dog comfortable and avoiding anything that could make the ear worse before your vet visit.

Prevent more irritation by stopping scratching if you can. An e-collar may help if your dog is injuring the ear.
Keep the ear dry. Skip swimming and avoid getting water in the ear during baths.
Do not use cotton swabs deep in the ear canal, and do not pour in peroxide, alcohol, oils, or leftover medications.
If your vet has previously recommended a specific ear cleaner for your dog, you can ask whether it is appropriate to use while waiting for the appointment.
Watch for worsening pain, swelling, discharge, odor, head tilt, or balance changes and seek urgent care if these appear.
If your dog has repeated ear infections, mention any skin itching, paw licking, or seasonal flare-ups to your vet since the underlying cause often needs treatment too.

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Common questions about ear infections in dogs

What does a dog ear infection look like?

Common signs include head shaking, scratching, redness, swelling, bad odor, pain, and brown, black, yellow, or waxy discharge. Some dogs also seem quieter than usual or pull away when the ear is touched.

Can a dog ear infection go away on its own?

Sometimes mild irritation may seem to improve, but true ear infections often need veterinary treatment and can become chronic or spread deeper into the ear if the underlying cause is not addressed. It's best to call your vet rather than wait it out.

What can I do for my dog's ear infection at home?

The safest home steps are to keep the ear dry, prevent scratching, and arrange a vet visit. Avoid using home remedies or leftover ear drops unless your veterinarian specifically tells you to use them.

Are dog ear infections an emergency?

Most ear infections are urgent rather than true emergencies, but they can become emergencies if your dog has severe pain, marked swelling, bleeding, facial droop, head tilt, loss of balance, or trouble standing.

Why does my dog keep getting ear infections?

Recurring ear infections are often linked to allergies, ear shape, excess moisture, chronic skin disease, hormonal problems, parasites, or an underlying issue that was never fully resolved. Repeated infections usually mean your dog needs a deeper workup with a veterinarian.

Can I treat my dog's ear infection at home?

You can help with comfort at home, but most true ear infections still need a veterinary exam and the right medication. The safest steps are to keep the ear dry, stop scratching, and avoid peroxide, alcohol, oils, vinegar, or leftover drops unless your vet specifically tells you to use them.

What home remedies work for dog ear infections?

There is not one home remedy that safely treats all dog ear infections because the cause may be yeast, bacteria, mites, allergies, or a foreign object. For mild ear discomfort, home care should focus on keeping the ear dry and using only a vet-approved cleaner if your veterinarian has already recommended one for your dog.

Looking for home remedies?

For mild ear discomfort, see our step-by-step home treatment guide.

Dog Ear Infection Home Remedy →

Sources

Disclaimer: The information provided in this article is for educational purposes only and does not constitute veterinary medical advice. Reading this content does not establish a veterinarian-client-patient relationship. Every pet is different — always consult a licensed veterinarian before making decisions about your pet's health, diet, or care. If you'd like personalized guidance, you can talk to one of our vets. If your pet is experiencing a medical emergency, contact your local emergency animal hospital immediately.

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