Dogs ears...

if it is ear mites his ear canal should have a thick ear wax build up...also, if he is around your other dogs they should be having ear mites problems as well...

what has worked for me when it comes to ear mites is 1.5 cc of injectable ivomec...inject it under the skin...I use that amount for a 40-60 pound dog, and I pour about that much in the ear and rub it in...a week later I inject 1 cc under the skin and do the same a week after that...if it is ear mites it will kill them...about the easiest procedure I know to use...he should be having problems with both ears if it is ear mites...but like already mentioned...the vet should be able to tell you if it is a bacterial infection or ear mites causing the infection...