Medical Management of Ear Disease

Ectoparasites The most important ectoparasites to affect the ears of dogs and cats are discussed in Chapter 3. In the cat, Otodectes cynotis accounts for up to 80% of all cases of otitis externa. Otodectic acariasis is a less common cause of otitis externa in the dog, perhaps because of the widespread use of potent systemic acaricidal spot-on medications.