Ear yeast infections are one of the most common health issues that plague our canine companions. Signs like head shaking, ear scratching, and foul odors coming from your dog’s ears are hard to ignore. But if your dog is suffering from an ear infection, it’s important to understand the cause and the proper treatment.
One of the most prevalent types of ear infections in dogs is otitis externa, an inflammation of the outer ear canal often caused by an overgrowth of yeast. Yeast infections in your dog ears can be frustrating and uncomfortable. But with the right information, you can get your dog’s ears healthy again.
What Causes Ear Yeast Infections in Dogs’ Ears?
Yeast is present on the skin of both humans and dogs. A type of fungus called Malassezia lives naturally on the skin’s surface, and a small amount is normal. But when yeast grows out of control, it can lead to infections and other issues.
What allows yeast populations to multiply and colonize in your dog’s ears? Here are some of the most common causes of overgrowth:
Excess Moisture in the Ear Canal
Dogs with floppy ears or narrow ear canals tend to have less air circulation. The warm, moist environment provides ideal conditions for yeast to thrive. Swimming, baths, and high humidity also increase moisture.
Allergies Leading to Inflammation
Dogs with allergies to foods, pollen, or other environmental triggers often get inflammation and irritation in their ears. As your dog scratches in response, it damages the skin’s protective layers. The inflammation and microscopic wounds give yeast an entry point.
Foreign Debris Gets Trapped in the Ear
When dirt, wax, grass seeds, or other debris gets lodged in your dog’s ears, it can lead to an infection. Yeast jumps on the opportunity to infect the damaged skin.
Other Bacterial or Fungal Ear Infections
If your dog already has an outer ear infection from bacteria or another fungus like Aspergillus, the inflammation gives yeast a chance to take hold as well.
The Unique Structure of a Dog’s Ear Canal
Dogs have a long, L-shaped ear canal that makes the area prone to infections. Moisture, dirt, and allergens get trapped in the vertical and horizontal parts of the canal. The ear also has hair follicles and glands that produce wax and oils —perfect nutrition for yeast.
Contributing Factors That Increase the Risk of Yeast Infections
Breed. Dogs with floppy ears like Cocker Spaniels, Labrador Retrievers, and Bassett Hounds have higher rates of infection. Their ear shape blocks air circulation.
Allergies. Dogs with environmental or food allergies tend to have more ear issues. The inflammation from their overactive immune response paves the way for infection.
Swimming or Bathing. Water gets trapped in the ear canals after swimming or bathing, creating a moist environment.
Hypothyroidism. Dogs with low thyroid hormone levels tend to get more skin and ear infections.
Antibiotics or Steroids. While these drugs serve a purpose in treatment, they also wipe out beneficial organisms that keep yeast in check.
Diet. Starchy, high-carb kibble, and treats can alter the pH in your dog’s body. Yeast overgrows in an acidic environment.
Symptoms of a Yeast Infection in a Dog’s Ears
Yeast ear infections cause irritation, inflammation, and discomfort. Your dog’s reaction to that itchiness and pain leads to most of the symptoms. Here are some of the most common signs:
- Head shaking and scratching at the ears
- Redness and swelling inside the ear
- Brown or yellow discharge that may be thick and waxy
- Foul yeasty or musty odor coming from the ears
- Itching, which may lead to more damage from scratching
You’ll notice your dog pawing at his ears or rubbing his head against furniture trying to get relief. He may cry out or whimper when you touch the infected ear. He’ll likely tilt his head or shake it violently.
Head shaking and scratching are such common symptoms that you may overlook an infection. But yeast overgrowth can lead to ruptured eardrums, further infections, and even hearing loss. So it’s important to inspect your dog’s ears if you notice excessive scratching.
Signs That Point Specifically to Yeast
Some signs are classic clues that yeast is likely the culprit:
- Yellow or brown buildup that looks waxy
- Sweet, yeasty odor, like rising bread dough
- Extreme redness or swelling of the outer ear canal
- Dark discharge that resembles coffee grounds
Caught early, a yeast infection may cause only mild redness and a slight odor. But left untreated, the inflammation and discharge will worsen. Severe infections also make the ear canal sore and narrowed.
How Vets Diagnose Yeast Infections in Dogs
If you suspect a yeast infection in your dog’s ears, make an appointment with your veterinarian. Diagnosing the exact cause is important before starting any treatment.
Here is how vets determine whether yeast is the culprit:
Physical Exam of the Ears
Your vet will thoroughly examine the ear canal with an otoscope. This lets them look for inflammation, discharge, growths, and other abnormalities. They will note the color, amount, and location of any discharge as well as the condition of the skin inside the canal.
Microscopic Exam of the Ear Discharge
Your vet will take a swab of debris from your dog’s ears and put it on a microscope slide. Looking at it under magnification helps identify an overgrowth of yeast. Microscopy can also reveal bacteria, which may signal a secondary infection.
Fungal Culture of the Yeast Organisms
To confirm yeast overgrowth and identify the specific species, your vet may take a sample and grow a culture. After 1-2 weeks in the lab, the culture will reveal the type of fungal organism. Knowing the exact yeast helps choose antifungal drugs likely to be effective.
Cytology to Look for Increased White Blood Cells
Your vet may do a cytology exam by looking at a smear of ear cells under the microscope. An abundance of white blood cells and inflammation markers points to infection. This guides treatment.
Testing to Rule Out Other Types of Infections
Bacterial cultures help confirm or rule out bacterial infections. Microscopy can also identify other fungal organisms like Aspergillus. Your vet may test for ear mites, hormone levels, and underlying illnesses based on your dog’s history.
Once your vet pinpoints the yeast overgrowth, they will recommend the most effective treatment options.
Treatment Options for Dog Ear Yeast Infections
Treating a yeast infection requires antifungal therapy to stop the growth of yeast organisms like Malassezia. Your vet will likely prescribe medication based on the severity of the infection.
Medications Used to Treat Yeast in Dogs’ Ears
Antifungal Ear Drops or Ointments
Powerful prescription antifungal eardrops are usually the first line of defense. These will contain strong drugs that reduce yeast overgrowth and related inflammation. Common options are miconazole, ketoconazole, or nystatin.
Oral Antifungal Pills
For severe or chronic outer ear infections, vets may prescribe oral antifungal medication. Fluconazole and itraconazole are two examples. These treat systemic yeast levels as well as the local problem.
Antibiotic Ear Drops
If a bacterial infection is also present, your vet may prescribe antibiotic drops to use alongside antifungals. This dual approach tackles all organisms involved in the infection.
Steroid Treatments to Reduce Inflammation
To provide immediate relief from itching, swelling, and pain, steroids like hydrocortisone are sometimes given. But long-term steroid use can have side effects.
Ketoconazole Cream
Ketoconazole cream can help treat several different types of fungal skin infections. It’s applied to the skin and has very few side effects. This medication is only FDA approved
Home Remedies and Lifestyle Changes for Yeasty Ears
Some alternative therapies and prevention methods can complement prescription meds:
Apple Cider Vinegar
This vinegar creates an acidic environment to slow yeast growth. Mix a 50/50 solution with clean water and gently wipe inside infected ears. Don’t use straight vinegar.
Keeping Ears Clean and Dry
Gently wipe debris and discharge from ears after swimming, baths, etc. Using a drying solution can help lower moisture that fuels yeast.
Probiotics to Balance Yeast
Oral probiotics or yogurt contain beneficial bacteria to balance yeast levels. Always ask your vet first.
Diet Change if Yeast Relates to Food Allergy
Eliminating grains, starches, or other foods your dog may be allergic to can reduce overall inflammation and ear issues.
While home remedies can support healing, severe infections usually require prescription medications. Here are some scenarios where conventional treatment is a must:
Severe Cases May Require More Aggressive Treatment
Surgery to Open Up the Ear Canal
If the canal is narrowed by swelling, polyps, or masses, surgery can open it up to allow the medication to reach the infected areas.
Long-Term Oral Medication Regimens
Chronic yeast may need four to eight weeks of oral antifungal drugs to resolve. Follow your vet’s instructions carefully.
Treating the Underlying Condition Causing Ear Problems
Allergies, hypothyroidism, diabetes, or autoimmune issues often need diagnosis and management to stop recurrent infections.
Now that you understand the treatment options, let’s go over some key ways you can help prevent yeasty ear infections in your dog.
How to Prevent Ear Yeast Infections in Dogs
While you can’t guarantee your dog will never get another ear infection, you can take proactive steps to avoid them:
- Keep ears clean and dry. Gently wipe out debris after swimming, bathing, or other water activities. After a bath, towel dry your dog’s ears well. You can also use a drying solution recommended by your vet.
- Treat any allergies, skin conditions, or autoimmune issues. Managing these underlying problems will reduce inflammation and prevent recurring infections.
- Use ear cleansers and drying agents. Your vet may recommend over-the-counter ear cleansers or drying solutions to use 1-2 times per week. These remove debris and moisture that fuel yeast.
- Stick to regular vet visits. Your vet can spot early signs of infection and prescribe medication before it worsens. Wellness visits also help diagnose and treat underlying illnesses.
- Feed a balanced diet low in carbs/sugar. Avoid starchy foods and opt for protein sources instead. Limit treats and monitor ingredient labels. A low-carb diet supports your dog’s overall health.
Prevention reduces the need for medication and helps avoid permanent ear damage from chronic infection. But what if you try to prevent infections and your dog still ends up with irritated, yeasty ears? Talk to your vet promptly.
The earlier the treatment starts, the faster your dog will heal. Waiting allows more severe inflammation and infection to develop.
FAQs About Dog Ear Infections and Yeast
How do I know if my dog has a yeast infection in his ears?
Look for symptoms like head shaking, yellowish discharge, odor, redness, and scratching at the ears. Your vet will confirm yeast overgrowth through a microscopic exam of the discharge.
What if my dog keeps getting yeast infections in her ears?
Recurrent infections mean an underlying problem that needs attention. Work with your vet to identify and manage allergies, thyroid issues, autoimmune disease, food sensitivities, or other conditions.
Are yeast infections in a dog’s ears contagious to other pets?
No, they cannot spread the infection to other pets or people. But yeast spores are everywhere in the environment. Good hygiene like hand washing protects human family members.
How long does it take a dog’s yeast ear infection to clear up?
With proper medication, you should see improvement within 5-7 days. But continue treatment for the full time your vet prescribes, usually 2-4 weeks. Recurrent infections may need a longer medication regimen.
What is the best home remedy for dog ear yeast infections?
Your vet may recommend gentle cleaning with apple cider vinegar and water. But never put vinegar or other home treatments into your dog’s ears without your vet’s guidance, as these can damage the eardrum.
Got another question? Be sure to discuss all your concerns with your veterinarian, the expert on your pet’s health and treatment.
Q: What are the symptoms of yeast infections in dogs?
A: The symptoms of yeast infections in dogs can vary, but commonly include redness, itchiness, and discharge around the ear. Other signs may include a foul odor, swelling, and a build-up of wax or debris in the ear.
Q: How can I prevent yeast infections in my dog’s ears?
A: To prevent yeast infections in your dog’s ears, it is important to keep the ears clean and dry. Regularly inspect and clean your dog’s ears using a gentle cleanser recommended by your veterinarian. Avoid moisture accumulation by ensuring your dog’s ears are thoroughly dried after bathing or swimming.
Q: Are certain dog breeds more susceptible to yeast infections?
A: Yes, certain dog breeds are more susceptible to yeast infections due to the shape of their ears. Breeds with long, floppy ears that hang down, such as Cocker Spaniels and Basset Hounds, are more prone to yeast infections as their ears provide a warm and moist environment that yeast thrives in.
Q: What is the difference between ear mites and yeast infections in dogs?
A: Ear mites are tiny parasites that can infest the ears of dogs and cause similar symptoms to yeast infections, such as itchiness and ear discharge. However, yeast infections are caused by an overgrowth of yeast on the skin and are not contagious like ear mites.
Q: How can I treat ear yeast infections in my dog?
A: Treatment for ear yeast infections in dogs typically involves cleaning the ears, removing excessive wax or debris, and using a prescribed antifungal medication. It is important to follow your veterinarian’s instructions and complete the full course of treatment to ensure the infection is fully cleared.
Q: Is there a home remedy for yeast infections in dog’s ears?
A: While there are some home remedies for yeast infections in dog’s ears, it is important to consult with your veterinarian before attempting any treatment. Your veterinarian can provide guidance on safe and effective home remedies, such as using a mixture of water and apple cider vinegar to clean the ears.
Q: Can yeast infections in dogs spread to the inner ear?
A: Yes, if left untreated, yeast infections in dogs can potentially spread to the inner ear. This can lead to more severe symptoms and complications. It is important to seek veterinary care if you suspect your dog has a yeast infection to prevent it from spreading.
Q: How can I prevent my dog from developing ear yeast infections?
A: To prevent your dog from developing ear yeast infections, it is important to maintain good ear hygiene. Regularly clean your dog’s ears with a gentle cleanser recommended by your veterinarian, especially if your dog is prone to yeast infections. Ensure your dog’s ears are dry and try to minimize moisture accumulation.
Q: Are certain dog breeds more susceptible to yeast infections?
A: Yes, certain dog breeds may be more susceptible to yeast infections due to their genetic predisposition. Breeds such as Bulldogs, Basset Hounds, and Shih Tzus are more commonly prone to yeast infections. However, any dog can develop a yeast infection if conditions are favorable for yeast growth.
Q: How do I get rid of a yeast infection in my dog’s ear?
A: To get rid of a yeast infection in your dog’s ear, it is important to consult with your veterinarian. They may prescribe an antifungal medication to treat the infection. It is important to follow their instructions and complete the full course of treatment to ensure the infection is cleared.
The Takeaway: Caring for Your Dog’s Ear Health
Ear infections plague many dogs, but yeast is one of the most common culprits behind sore, irritated ears in canines. While frustrating, yeast overgrowth in your dog’s ears is very treatable with prescription antifungal medications. Combining medication with preventive steps can help stop the cycle of recurrent infections.
The keys are identifying infections promptly and following your vet’s treatment protocol. Pay close attention for telltale scratching and head shaking. Make sure to follow through on the full course of medication, even if your dog’s ears look better.
Prevention is critical, especially if your dog is prone to allergies or other illnesses. Work closely with your vet to manage underlying conditions. Keep your dog’s ears clean and monitor for signs of developing issues.
With vigilance and proper care, yeasty ears don’t have to rule your dog’s life. You can take charge by spotting infections early and helping your canine companion live comfortably.