An acquaintance has a young adult male Rottweiler with severe allergies. He is prescribed Atarax (Hydroxyzine) and the vet has him on Science Diet Z/D. Before the diet change his face and muzzle were red, raw and bleeding. Apparently the vet wants to keep him on this diet for 6 months to allow the dog time to become comfortable again. I buy the validity of this to a certain extent, but I think this lady is throwing her money away with the Science Diet and I want to give her some other food options to think about. Any information or suggestions?