How's his tootsies today? It usually does take a while for skin to heal, but is he still trying to lick all the time? Maybe call the vet. He might need a shot of steroids. (Star gets them when her hot spots go wild.) Jack was on ProPlan when he joined us, and he was doing well. but Star is SO picky, and after consuming 40+ lbs. of Canidae when Sheman was here, she flat out refused to eat it anymore. Didn't like the ProPlan either, so we went back to our usual Science Diet. I know people here knock SD a lot, but it's what she'll eat. I don't know if you looked at Canidae, but they use terrific ingredients & have a lot of choices of formulas. I especially liked that it contained glucosamine & other good stuff. But if they are doing well on ProPlan, why worry?