Thanks everyone, sorry I didn't follow up on this, but I knocked a glass of water onto my laptop, so my computer access is a bit sporadic while I get it fixed.

I couldn't get a vet appointment till after the New Year, but I did take her. It was a new vet in the office that I'd never seen before,(and definately won't see again if I can avoid it ). I mentioned a stronger antibiotic even adding an oral in, but she wasn't very receptive. She thought it was allergy, and prescribed otomax again and added a course of prednisone. I tried to discuss trying a different one since otomax was helping but wasn't clearing it up, but she just kind of nodded and said we'll just try it first and see since that's the normal way to treat.
Nikka seems to be doing better, but right now she's still getting both the preds and otomax, which ends next week so I'll see how it goes. Once I've got it knocked down I thought I'd try the vineger/rubbing alcohol combo and see how that goes. If I still have problems I'm definately going to one of the other vets and making sure they actually pay attention to the previous notes in the file and me rather than just going with the "normal" regime.

The fun part is now Hunter has an ear infection in one of his ears, so back to the vet, although I'm going to make sure it's a different one. I have an appointment for Friday, but when I used a Q-tip to try to clean some of the stuff out I pulled it back with some blood on it so I may try to just go to walk in when I get off work tonight. I keep joking he doesn't want to be left out of all the "attention" Nikka gets when she get her ears cleaned....