A–Z topic · E
Ear infections
Quick answer
Ear infections (otitis externa) cause **head shaking, scratching, redness, odour, and discharge** in the ear canal. They are often linked to allergies, moisture, or anatomy — especially in floppy-eared breeds. See your vet for diagnosis and prescription treatment; **do not use human ear drops** or insert cotton swabs deep into the canal.
Key takeaways
- Head shaking, ear scratching, redness, swelling, odour, and brown or yellow discharge are common signs. Your dog may also tilt their head or cry when the ear is touched.
- Over-the-counter drops are rarely enough and can mask a deeper problem. Always have the ear examined and get appropriate prescription treatment from your vet.
- Underlying allergies, anatomy, moisture, or unresolved yeast or bacterial overgrowth often cause recurrence. Your vet may recommend allergy management, ear cleaning protocols, or further testing.
The full guide
Causes, symptoms, treatment options and when to call your vet — in the complete plain-English guide.
Frequently Asked Questions
- How do I know if my dog has an ear infection?
- Head shaking, ear scratching, redness, swelling, odour, and brown or yellow discharge are common signs. Your dog may also tilt their head or cry when the ear is touched.
- Can I treat my dog's ear infection at home?
- Over-the-counter drops are rarely enough and can mask a deeper problem. Always have the ear examined and get appropriate prescription treatment from your vet.
- Why do ear infections keep coming back in dogs?
- Underlying allergies, anatomy, moisture, or unresolved yeast or bacterial overgrowth often cause recurrence. Your vet may recommend allergy management, ear cleaning protocols, or further testing.