Yeast ear infections (otitis externa caused by Malassezia pachydermatis) are the most common type of ear infection in dogs, and choosing an antifungal ear product that matches the problem matters. Not all ear drops and cleaners have the same antifungal potency, and the active ingredient matters more than the brand name. This guide compares common ear products used for canine ear yeast infections by their antifungal ingredients and how they are used. It does not rank them.
Disclosure: Vetified makes Ear Infection Relief + Cleaner and Dog Ear Cleaning Wipes. We include them alongside other options and list their downsides too, so keep that in mind as you read.
Products for this topic
Vetified makes these products.
Ear Infection Relief + Cleaner
0.2% ketoconazole + 0.2% chlorhexidine, 12 fl oz. Dual-action ear flush for yeast and bacteria, dark wax and odor.
View Ear Infection Relief + CleanerDog Ear Cleaning Wipes
Non-medicated aloe vera wipes for routine cleaning of wax and debris from the outer ear.
View Dog Ear Cleaning WipesWhat we see from our customers
We looked at the Amazon searches that led shoppers to our ear cleaner over the last 90 days. Shoppers searching "antifungal ear drops for dogs" bought it at about 41%, compared with about 18% for that search overall. Searches naming both problems at once, like "dog ear cleaner yeast and bacteria", were among our most common routes to a purchase. Our takeaway: owners dealing with smelly ears often already suspect yeast, and many suspect bacteria too, which matches how often chronic ear cases turn out to be mixed.
Source: Vetified Amazon Search Query Performance data, July 23 to October 20, 2026. Vetified makes the products mentioned.
A note from E. Maddens
When I adopted Lily, my Stafford, from a shelter in Pasadena, her ears were very dirty and often itchy. That is a big part of why ear care matters so much to me, and why I know how frustrating it is when your dog keeps scratching at their ears.
Why Antifungal Ingredients Matter for Yeast Infections
Malassezia yeast is a fungal organism, not a bacterium. This means antibacterial-only products (even strong ones) will not resolve a yeast infection. The dark brown, waxy discharge and musty odor characteristic of yeast infections require antifungal treatment. The most common antifungal ingredients in dog ear products are ketoconazole, miconazole, clotrimazole (prescription), and posaconazole (prescription). Ketoconazole is common in OTC ear products because published research shows strong activity against Malassezia species.
TrizULTRA + Keto Flush
TrizULTRA + Keto combines ketoconazole with TrizEDTA, a chelating agent that disrupts bacterial cell walls and enhances antifungal penetration. This product is a veterinary-dermatologist favorite for moderate to severe yeast infections. The TrizEDTA component is useful because it helps break down the biofilm that yeast and bacteria can form inside the ear canal, improving ketoconazole delivery to the organisms.
Good fit for: moderate to severe or recurring yeast infections your veterinarian is managing, and use before prescription ear drops.
Pros: ketoconazole plus TrizEDTA; widely used by veterinary dermatologists.
Cons: limited availability, mainly through veterinary clinics.
Enzymatic Option: Zymox with Hydrocortisone
Zymox Enzymatic Ear Solution with hydrocortisone addresses yeast through its LP3 Enzyme System rather than a traditional antifungal. The enzymatic approach generates antimicrobial compounds that are active against yeast, and the hydrocortisone reduces the inflammation and itching that accompany yeast infections. Zymox can be used without pre-cleaning, which is helpful when the ear is too painful to handle.
Good fit for: sore, itchy ears that are hard to clean, where your veterinarian is comfortable with a hydrocortisone product.
Pros: no pre-cleaning step; includes hydrocortisone for itch and inflammation.
Cons: uses an indirect enzymatic mechanism rather than an azole antifungal; contains a steroid, so check with your vet first.
Curaseb Ear Flush
Curaseb (by Bexley Labs) contains chlorhexidine and ketoconazole, a similar pairing of actives to Vetified's ear flush, and includes added aloe vera. Curaseb is widely available on Amazon and at pet supply stores.
Good fit for: owners who want a chlorhexidine plus ketoconazole flush that is easy to find in stores and online.
Pros: chlorhexidine and ketoconazole; added aloe vera; widely stocked.
Cons: comes in a smaller 8 oz bottle; check the label for strengths and contact time.
Vetified Ear Infection Relief + Cleaner
Vetified makes this product.
Vetified Ear Infection Relief + Cleaner contains 0.2% ketoconazole + 0.2% chlorhexidine in a 12 fl oz bottle. In published research, ketoconazole inhibits Malassezia growth and chlorhexidine acts against a broad range of bacteria. That pairing is relevant because yeast ear infections frequently coexist with bacterial overgrowth. It is labeled as an ear cleaner and medicated flush in one, so it is also used to flush out waxy debris. It is an OTC veterinary drug listed on DailyMed (not FDA approved). Use as directed on the label.
Good fit for: mild yeast or mixed yeast and bacterial ear problems your veterinarian has checked, and owners who want a cleaner and medicated flush in one bottle.
Pros: ketoconazole and chlorhexidine together; cleans and medicates in one step; 12 fl oz bottle.
Cons: sold mainly online; a newer brand; the product itself has not been tested in a published clinical study; you need to follow the label directions and contact time.
What to Avoid for Yeast Infections
Avoid ear products that contain only antibacterial ingredients without antifungal components. Products marketed as "ear cleaners" without any active antimicrobial agents (basic saline solutions, simple drying agents) will not treat an active yeast infection. Also avoid hydrogen peroxide, vinegar, and rubbing alcohol, which are common ear cleaning mistakes that irritate the ear canal and can worsen yeast overgrowth by disrupting the natural skin barrier.
How to Treat a Dog Ear Yeast Infection at Home
A mild yeast ear infection with dark brown waxy discharge and a musty smell can often be managed at home with an antifungal ear product. If the ear is very painful, bleeding, producing yellow or green pus, or your dog has a head tilt, see your veterinarian first so the eardrum can be checked.
- Confirm the signs. Yeast typically causes brown, greasy wax, a musty odor and itching. Pain, pus or a bad bacterial smell call for a veterinary exam.
- Clean before treating. Fill the canal with an antifungal ear cleaner, massage the base of the ear for 20 to 30 seconds, and let your dog shake. Medication works poorly on top of thick wax.
- Wipe away debris. Use cotton balls or gauze on the outer ear only. Do not use cotton swabs inside the canal.
- Treat consistently. Use the antifungal product daily, or as the label directs, for the full course rather than stopping once the smell fades.
- Keep the ears dry. Dry the ears after baths and swimming, since moisture helps yeast regrow.
- Track progress and follow up. With consistent care, a mild yeast ear infection typically starts to improve within one to two weeks. If it does not improve, keeps coming back, or gets worse, see your veterinarian for ear cytology and a check for underlying allergies.
Frequently Asked Questions
How long does it take for antifungal ear drops to work on yeast infections?
Most dogs show noticeable improvement (reduced discharge, less odor) within 3 to 5 days of consistent use. Full resolution typically takes 7 to 14 days. If there is no improvement after 5 to 7 days, see your veterinarian, as the infection may require prescription treatment or may not actually be yeast-related.
Can I use human antifungal cream in my dog's ears?
Do not use human antifungal products (like Monistat or Lotrimin) in your dog's ears. These products are not formulated for the ear canal, may contain ingredients that are ototoxic, and the delivery vehicle (cream vs liquid) is not appropriate for the ear canal environment.
Why does my dog's yeast infection keep coming back after treatment?
Recurring yeast infections almost always indicate an underlying cause, most commonly allergies (environmental or food). The yeast infection is a symptom, not the primary problem. Addressing the underlying allergy through diet changes or allergy management is essential to prevent recurrence.
Is ketoconazole or miconazole better for dog ear yeast infections?
Both are effective azole antifungals. Ketoconazole tends to have slightly broader antifungal activity and longer skin contact time, making it a common choice for ear products. Miconazole is also effective and is the antifungal found in many prescription ear medications. The difference in clinical outcomes is generally small.
References
- Bajwa J. Canine otitis externa: treatment and complications. Canadian Veterinary Journal. 2019;60(1):97 to 99. PubMed
- Nuttall T. Managing recurrent otitis externa in dogs: what have we learned and what can we do better? Journal of the American Veterinary Medical Association. 2023. PubMed
- Swinney A, Fazakerley J, McEwan N, Nuttall T. Comparative in vitro antimicrobial efficacy of commercial ear cleaners. Veterinary Dermatology. 2008;19(6):373 to 379. PubMed
- Paterson S. Topical ear treatment: options, indications and limitations of current therapy. Journal of Small Animal Practice. 2016;57(12):668 to 678. PubMed
What changed: October 21, 2026: added our customer data, a references list and an ownership note next to the products.
Vetified Product Mentioned in This Article
Vetified makes this product.
Vetified Ear Infection Relief + Cleaner is a medicated ear cleaning solution that combines chlorhexidine and ketoconazole. It is an OTC veterinary drug listed on DailyMed (not FDA approved). Use as directed on the label.
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Medical disclaimer: This article is for informational purposes only and does not constitute veterinary medical advice. Always consult a licensed veterinarian for diagnosis and treatment of your pet's health conditions. While we work to keep this information accurate and up to date, we can't guarantee it is complete or error free.
Research basis: All Vetified content references peer reviewed research published in journals including Veterinary Dermatology, JAVMA, and Journal of Small Animal Practice.