I am in the middle of a battle with Mr. Chev (mastiff) and brown-maroon waxy stuff in his right ear, facing me. I clean it out with Q-tips, and a few days later, it seems to be back, sometimes with a vengeance. I purchased some Zymax, and it relieves the head-shaking and itch, but it does not heal the problem. Is this something I just have to contend with, or is there something more curative ??? thanks.