Inner ear infection (otitis interna) or middle ear infection (otitis media). An untreated external ear infection can easily lead to a very painful middle or inner ear infection, both of which have similar signs to otitis externa, along with reluctance to open the mouth or problems with balance. Some dogs may walk in circles or become nauseous.
Treatment for middle or inner ear infections may require antibiotics, flushing the ear by your vet, or surgery if the infection is serious.
Ear Discharge in Dogs: Why You Should Talk to Your Vet
Gently pull back your dog's ears and have a quick look inside. What you should see is a clean, pink ear canal. If you notice discharge, redness, swelling, or odor, it's time to talk to the vet. Left untreated, ear problems in dogs can result in severe pain, hematomas (the ear flap fills up with blood), balance problems, and even deafness.
Because ear discharge in dogs can be the result of several causes and can have all kinds of smells, colors, and consistencies, don't try to guess what's causing your dog's ear discharge. Find out by making an appointment with your vet, who can diagnose the cause of your dog's ear discharge and prescribe the best treatment.