Yeah, we're big fans of Zymox here. I have the huge bottle of it. Most of the time that works but sometimes you have to bring out the big guns. I'm unsure if this is a new infection or just a rebound from last month. We're zymoxing until/if we call in a fix on Thursday. Thankfully, after two months of this, the vet is willing to treat him without another office visit and ear swab.
Max "the ninja"-American Cocker Spaniel G-day 3/2009
Charlie "the middle child"- Orange Tabby G-day 7/2005
Sadie - Grey Tabby 9/1996-8/4/2012 RIP