Dog Ear Mites: Symptoms, Treatment & How to Get Rid of Them 2026

Dog ear mites are tiny parasites that live in the ear canal, causing intense itching, dark discharge, and relentless head shaking. While ear mites are more common in cats, dogs can and do get them — especially puppies and dogs that spend time around other animals. The good news: ear mites are highly treatable once correctly diagnosed.

This guide is for informational purposes. Always contact a veterinarian directly for diagnosis and treatment of your pet’s condition.

What Are Ear Mites?

Ear mites (Otodectes cynotis) are microscopic parasites that live on the surface of the ear canal skin, feeding on wax and oils. They are highly contagious between animals through direct contact — an infected cat sleeping near a dog can transmit mites easily. Ear mites are not transmitted to humans.

The mite lifecycle takes about 3 weeks from egg to adult. Adults live approximately 2 months. Because they reproduce quickly and the eggs are resistant to many treatments, a full treatment course is essential to break the cycle. Treating only once and stopping early is a common reason mites recur.

Symptoms of Dog Ear Mites

The telltale sign of ear mites is dark, coffee-ground-like debris inside the ear canal. This debris is a combination of ear wax, dried blood, and mite waste. Other symptoms include:

• Intense ear scratching — your dog will scratch at one or both ears repeatedly
• Head shaking — frequent, vigorous head shaking is a classic sign
• Dark brown or black discharge — resembles coffee grounds inside the ear canal
• Odor from the ears — a musty or yeasty smell may be present
• Skin irritation — redness or raw patches around the outer ear from scratching
• Crusting — scabs may form around the ear from self-trauma
• Head tilt — in severe cases, inflammation can affect balance

Source: Merck Veterinary Manual; VCA Animal Hospitals

How Vets Diagnose Ear Mites

A vet will examine your dog’s ear canal with an otoscope and may take a swab of the debris to examine under a microscope. The mites themselves are visible under magnification — they appear as tiny white moving dots. This quick in-clinic test gives a definitive diagnosis within minutes.

Occasionally ear mites are misdiagnosed as a bacterial or yeast infection (and vice versa), so an accurate diagnosis matters before starting treatment. Using anti-mite drops on a bacterial infection won’t help, and antibiotics won’t clear mites.

Treatment Options

Several effective treatments for ear mites are available. Some require a prescription; others are available over the counter. A vet visit is strongly recommended before treatment to confirm the diagnosis.

Prescription Treatments (Most Effective)

• Revolution (selamectin) — a topical spot-on treatment applied monthly that kills mites along with fleas, heartworm, and other parasites. One of the most convenient options.
• Bravecto Plus / Simparica Trio — multi-parasite topical products that include ear mite coverage
• Acarexx (ivermectin ear drops) — prescription ear drops specifically for ear mites; one or two treatments are usually sufficient
• Milbemite (milbemycin oxime) — another prescription ear drop with high efficacy in a single treatment

OTC Treatments

• Eradimite / Mitactin — over-the-counter ear drops containing pyrethrins; require 7–10 days of daily treatment
• Zymox Otic — enzyme-based ear cleaner that can help with mild cases and ear hygiene during treatment

Treat all pets in the household simultaneously, even if they show no symptoms. Mites spread easily and untreated animals will reinfect treated ones.

Home Care & Ear Cleaning

Cleaning the ear canal before applying treatment helps medications reach the mites more effectively. Here’s a safe way to clean at home:

1. Use a vet-approved ear cleaning solution (not hydrogen peroxide or alcohol)
2. Gently pour a few drops into the ear canal
3. Massage the base of the ear for 20–30 seconds
4. Allow your dog to shake their head
5. Wipe away debris from the outer canal with a cotton ball — never use cotton swabs inside the canal
6. Apply the ear mite treatment as directed after cleaning

Do not over-clean ears — once daily during active treatment is sufficient. Over-cleaning can disrupt the natural ear environment and delay recovery.

Prevention

• Use a monthly multi-parasite prevention product that covers ear mites (ask your vet about Revolution or Bravecto)
• Minimize your dog’s contact with stray or unknown animals
• If you bring a new pet home, isolate them and have them checked by a vet first
• Clean your dog’s bedding, toys, and shared spaces if mites are confirmed
• Schedule regular ear checks with your groomer or vet — early detection means easier treatment

Ear Mites vs. Ear Infection: How to Tell the Difference

The symptoms overlap enough that many pet owners (and sometimes vets in a hurry) confuse the two. The key distinguishing factor is the debris: ear mite debris is dry and crumbly, resembling coffee grounds. Bacterial or yeast infection discharge is usually moist, pus-like, and yellow, brown, or green.

Ear infections also tend to have a stronger, more unpleasant odor than ear mites. And infections are not contagious to other pets, whereas mites spread rapidly through a multi-pet household. When in doubt, a microscopic exam of the debris is the only reliable way to know for certain.

Find a veterinary clinic near you on HeiBob to get your dog’s ears properly diagnosed and treated.

Need a vet to check your dog’s ears? Find trusted veterinary clinics on HeiBob to get a diagnosis and start treatment quickly.