My dogs have had earmites and my little boy has had them multiple times. We have the ointment stocked up. We now go to a groomer that plucks the hair out of their ears so well, that the vet even compliments us when we go in for visits! I really suggest plucking the hair out of the ears. Check with your vet, but I am pretty sure I remember mine telling me to get the ear hair plucked even when he had an infection as it would help it clearup faster. Also note that they make a special powder to help make it easier to pluck. Most groomers will do it when asked. I prefer the groomer to do mine.
Goodluck! Let us know how you make out!
