My 3 year old female (I refuse to refer to her as a b....h) is having problems with her anal glands. I have the Vet express them about every three weeks on average, but sometimes more often. She gets dry food (Precise Formula), often spiced up with something like parmisan cheese or apple sauce or a little meat gravy. She also gets anti-tartar treats by Nutro and an occasional raw hide impregnated with an anti-tartar hormone prescribed by our Vet). Any suggestions about diet or other treatment would be appreciated.