General guidance — not a diagnosis. When in doubt, call your vet.
Check the prescription before touching the ear
Give your dog's ear drops only as prescribed for that dog, ear and current problem. Ask for a demonstration and confirm whether cleaning is needed before treatment. Stop and call the clinic if pain prevents safe handling, and seek urgent help for new balance problems or hearing changes rather than adding more drops.
This guide concerns medication your vet has already prescribed. Scratching and head shaking are signs of irritation, not proof that leftover ear medicine is appropriate. AAHA's allergy guidelines recommend ear cytology to guide treatment and stress the importance of demonstrating cleaning and medication technique.[1]
Read the label and discharge sheet together. Confirm the affected ear, the prescribed amount and schedule, storage instructions, whether the bottle needs shaking, and the follow-up appointment. Resolve conflicting directions with the clinic before starting. Keep medications for different pets separate, and ask what to do after a missed or uncertain application.
Prepare a calm application
Set out the medication, any specifically approved cleaner, cotton pads and the written record before bringing your dog over. Choose a stable place where your dog cannot fall or slip, and ask whether a helper would make the task easier. Avoid turning medication time into a chase; a dog who cannot be handled safely needs a different plan.
Washington State University's teaching hospital explains that the vet should specify whether cleaning is required before ear medication. It also warns that deep applicator placement can injure the eardrum.[2] Follow the technique demonstrated for your bottle; do not push a nozzle deep into the canal or force it into a narrow opening.
If cleaning is prescribed, use the named product and sequence. Do not substitute a household mixture or clean more often because the ear still looks dirty. Never push cotton swabs down the canal. Tell the clinic if debris or swelling prevents the demonstrated technique instead of trying to clear a painful ear yourself.
For medication intended for home use, gently expose the opening as demonstrated, deliver the prescribed amount and massage the ear base only if your team has shown you to do so and your dog tolerates it. WSU describes massage as a way to distribute ear medication.[2] Keep the applicator away from your own face and avoid contact between medication and eyes.
Distinguish home drops from clinic treatment
Some ear products are administered by veterinary personnel and have their own aftercare requirements. For example, the CLARO label specifies veterinary administration and warns that cleaning afterward can affect effectiveness.[3] Do not assume that a familiar cleaning routine should continue after a new product has been placed in the ear.
Ask the clinic to write down what was administered, whether anything else should be put in the ear and how long its aftercare restrictions apply. If you were sent home without a bottle, clarify the plan rather than using an old prescription to “finish” treatment. Different products are not interchangeable because they share a purpose.
Record each application and any difficulty. If your dog shakes immediately, liquid runs out or you are unsure how much entered, report what happened before repeating the medication. An uncertain application is a reason to ask, not a reason to estimate a replacement amount.
Keep the recheck even if the odor improves. A swollen ear flap, ongoing pain or persistent scratching may require additional assessment. This guide cannot diagnose ear disease: your dog's examination, medication and ability to tolerate handling determine a workable plan.
When to See a Vet
- Seek urgent veterinary care for new head tilt, falling, loss of balance, abnormal eye movements or an apparent sudden hearing change during treatment.
- Contact your clinic promptly for marked pain, crying, snapping or swelling that prevents safe application; do not force treatment into a painful ear.
- Contact your vet for bleeding, a newly swollen ear flap, worsening discharge or persistent scratching despite following the prescription.
- Seek immediate veterinary advice after medication enters an eye, your dog becomes severely unwell or an accidental ingestion occurs; bring the product packaging.
For dog owners
An article can't ask about your dog.
Describe what you're seeing. You'll get a few follow-up questions about your dog, then where it lands — vet today, watch closely, or no visit needed — and what to do at home meanwhile.
Frequently Asked Questions
Should I clean my dog’s ears before every dose?
Only if that is part of the instructions for the particular product and treatment plan. Cleaning can help some treatments, but it can interfere with others. Ask for the cleaner, sequence and schedule in writing rather than combining advice from different prescriptions.
What if my dog shakes the drops out?
Do not automatically apply another amount. Note whether the drops entered the ear and what you saw afterward, then ask the prescribing clinic how to proceed. Medication on the ear flap or floor does not tell you how much remains in the canal.
Can I use ear drops left over from a previous infection?
Ask your veterinarian before using them. The current problem, eardrum status and product condition may differ from the previous episode. A similar smell or color of discharge does not establish that the same medication is appropriate or safe.
What if my dog will not let me touch the ear?
Stop before either of you is injured and contact the clinic. Explain whether your dog is frightened, painful or reacting differently since treatment began. The team may need to reassess the ear or adapt treatment; successful care should not depend on overpowering a distressed dog.
Do I need home drops after treatment was placed at the clinic?
Not necessarily. Ask which product was used and follow its specific aftercare plan. Some clinic-administered products are meant to remain in the ear without additional cleaning or medication. Do not add leftover drops simply because you are accustomed to giving a home treatment.
Can I stop ear medication when the smell goes away?
Follow the prescribed course and recheck plan, and call before changing them. Improvement in odor does not by itself establish that inflammation or infection has resolved. If the medication seems to worsen pain or causes new signs, contact the clinic immediately instead of continuing without advice.
References
- AAHA. 2023 Management of Allergic Skin Diseases in Dogs and Cats Guidelines: Otitis Externa. https://www.aaha.org/wp-content/uploads/globalassets/02-guidelines/2023-aaha-management-of-allergic-skin-diseases-in-dogs-and-cats-guidelines/resources/2023-aaha-management-of-allergic-skin-diseases-guidelines.pdf
- Washington State University Veterinary Teaching Hospital. Examining and medicating the ears of a dog. https://hospital.vetmed.wsu.edu/2022/01/04/examining-and-medicating-the-ears-of-a-dog/
- DailyMed. CLARO: florfenicol, terbinafine, mometasone furoate prescribing label. https://dailymed.nlm.nih.gov/dailymed/fda/fdaDrugXsl.cfm?setid=9bd1d059-68a6-459f-9f79-2fcd97c952d6