been giving my shih tzu vitality value meal.. he's got hotspots and the vet said that he maybe allergic to the dog food. he's dog food shud be low in protein. so switched him to vitality. but he's not eating it..he's barely touching his food. any low protein dog food that you guys could recommend for my shih tzu? he's got allergies/hotspots all over him and got wounds all over his body from scratching it all the time.. (