Since the third medication, Posatex, hasn't stopped Jack's ear scratching, back to vet we went. We found out that he has no infection any longer, that the problem appears to be allergies. Makes me wonder how long his yeast infection has been gone and we were still treating it. So, we are now going to an animal dermatologist for testing!! We feed him Fromm, and Jeff buys every flavor so Jack has a variety. I have told him I didn't think that was a very good idea, but not sure if that really matters or not . One thing for sure at least, is that Jack has the cleanest years from the daily cleaning!!