dog ear infection: how to treat it at home or know when to see a vet

A dog ear infection usually needs veterinary treatment, especially when your dog has pain, redness, swelling, discharge, a strong odor, repeated head shaking, or a head tilt.

Mildly dirty ears without signs of infection can sometimes be monitored or gently cleaned at home, but home cleaning does not treat an ear infection.

Dog ear infections can be caused by yeast, bacteria, ear mites, or another underlying problem. Because these conditions can look similar, a veterinarian may need to examine the ear and use an ear swab and cytology to identify the cause before choosing treatment.

Don’t wait for their symptoms to become worse. Get your dog’s ears checked

How to tell if it is an ear infection or just dirty ears

A little earwax or dirt can be normal. If your dog's ears look slightly dirty but they’re comfortable, have no unusual odor or discharge, and aren't repeatedly scratching or shaking their head, gentle cleaning may be enough.

An ear infection is more likely when the ear is inflamed, painful, smelly, or producing unusual discharge. Dogs with ear infections may also shake their heads frequently, scratch their ears, or resist having their ears touched.

Signs of a possible dog ear infection include:

• frequent head shaking
• scratching or pawing at the ears
• brown, yellow, or other unusual discharge
• foul, musty, or sweet-smelling odor
• redness or swelling inside or around the ear
• pain or yelping when the ear is touched
• skin scratched raw around the ear
• holding the head tilted to one side
• loss of balance or unusual unsteadiness

You can't diagnose the issue by sight alone. Yeast, bacteria, ear mites, allergies, and other problems can produce overlapping signs, which is why an exam is necessary when symptoms persist or worsen.

Treat at home or see a vet? A simple triage

When deciding whether you can care for your dog's ears at home, focus on comfort and signs of infection.

If your dog has developed a head tilt or loss of balance, take them to see a vet. It could mean the infection has gone deeper into the ear.

It's also important to understand the limits of home care. Gentle cleaning can remove dirt and excess wax from a healthy or mildly dirty ear, but it cannot cure an ear infection. If your dog has pain, inflammation, discharge, odor, persistent scratching or head shaking, don't delay an exam while trying different home remedies.

How to safely care for a dog's ears at home

For healthy ears or ears that are only mildly dirty, routine cleaning can help remove excess wax and debris. Your veterinarian can recommend an ear cleaner that's appropriate for your dog and show you how often to use it.

For routine ear cleaning:

1. Use a veterinarian-approved ear cleaner.
2. Apply the cleaner as directed.
3. Gently massage the base of the ear if your veterinarian recommends it.
4. Let your dog shake their head.
5. Wipe away loosened debris with gauze or a cotton ball.
6. Gently dry the outer part of the ear.
7. Clean the tip of the ear cleaner bottle with rubbing alcohol so you don’t reintroduce bacteria or yeast next time.

Never push a cotton swab deep into your dog's ear canal. It can injure the delicate skin or push debris farther into the ear.

What to avoid putting in your dog’s ears

Some common household products can also irritate an inflamed ear or cause problems if the eardrum is damaged. Don't put the following in your dog's ears:

  hydrogen peroxide

  rubbing alcohol

  vinegar or apple cider vinegar

  human ear drops

  other homemade ear-cleaning solutions

If the eardrum is ruptured, certain products can cause significant irritation and may contribute to hearing or balance problems. That's one reason it's safest to have a painful or inflamed ear examined before putting medication or cleaning products into it.

Cleaning your dog’s ears does not replace veterinary care. If your dog appears to be in pain or the ear becomes red, swollen, smelly, or produces discharge, stop cleaning and have them checked out by a vet.

What causes dog ear infections?

Most dog ear infections involve an overgrowth of yeast or bacteria in the ear canal. The overgrowth is often secondary to another problem that changes the environment inside the ear.

Common factors include:

• Allergies: Food allergies and environmental allergies can cause inflammation that makes ear infections more likely.
• Moisture: Water trapped in the ear after swimming or bathing can create an environment where microorganisms multiply.
• Ear anatomy: Floppy ears, hairy ear canals, and the naturally L-shaped structure of a dog's ear can make ventilation and drainage more difficult. A mass or tumor can also cause an infection.
• Foreign material: Grass seed and other material can become trapped in the ear and cause irritation or infection.
• Underlying health conditions: Some medical conditions can make recurrent infections more likely.

This is why simply treating the infection may not be enough for a dog that has recurrent ear problems. If the underlying cause isn't addressed, the infection may return.

How veterinarians diagnose and treat ear infections

A veterinarian starts by examining your dog's ear and asking about the symptoms you've noticed. Depending on the situation, the veterinarian may use an otoscope to examine the ear canal and eardrum and collect a sample of ear debris for cytology.

Ear cytology is an examination of material from the ear under a microscope that can identify yeast, bacteria, or ear mites. This matters because the appropriate treatment depends on what's causing the infection.

Treatment may include:

• Prescription ear medication selected for the cause of the infection
• Medication to control inflammation and discomfort
• Treatment for an underlying allergy or other condition
• Ear cleaning to remove built-up wax and debris
• A follow-up examination to make sure the infection has cleared

Some severely inflamed, painful, or deeply affected ears may need a more thorough cleaning or flush under sedation. Your veterinarian can explain what your dog needs based on the condition of the ear.

Why does my dog keep getting ear infections?

Recurring dog ear infections usually mean an underlying cause hasn't been fully identified or managed. Allergies are a common driver, but ear anatomy (including a mass or tumor), moisture, foreign material, or certain health conditions can also contribute.

Repeating the same ear drops every time symptoms return may temporarily improve the infection without addressing why it keeps happening. Breaking the cycle usually means working with your veterinary team to identify and manage the underlying problem.

For dogs with recurring infections, your veterinarian may recommend an allergy evaluation, a different ear-care routine, or regular monitoring in addition to treating each active infection.

How much does treatment cost, and can a wellness plan help?

The cost of treating a dog ear infection varies by location, the severity of the infection, and the diagnostics and treatment they need. A straightforward case may require an exam, ear cytology, and prescription medication, while a chronic or severe infection may require additional diagnostics, sedation, treatment, or follow-up visits.

Banfield Optimum Wellness Plans^® include routine veterinary diagnostics like an ear exam and cytology to help make care more affordable. Getting the right diagnosis early can help prevent an uncomplicated ear problem from becoming a more difficult or recurring one.

Explore Optimum Wellness Plans for dogs

How to prevent dog ear infections

You can't prevent every ear infection, particularly when allergies or a dog's ear anatomy play a role. But regular ear care and veterinary wellness visits can help reduce risk and catch problems earlier.

Helpful prevention steps include:

• Check your dog's ears regularly for redness, odor, discharge, or changes in the amount of wax.
• Use a veterinarian-approved ear cleaner if your dog is prone to ear problems.
• Ask your veterinarian how often your dog's ears should be cleaned.
• Flush and dry ears with cleaner after swimming and bathing.
• Work with your veterinarian to manage allergies if they contribute to recurring infections.
• Keep up with regular wellness exams.

If your dog frequently develops ear infections, ask your veterinary team about a prevention plan rather than waiting for the next infection to appear.