I know saying such things won't make me very popular, but it's my view that if you want to keep a carnivore you either feed it properly and keep it healthy, or you don't keep it at all. Why on earth would you feed a food that is clearly SO inappropriate for your pet that it requires drugs (which any vet will tell you further damages the health) to even get through a day without unbearable itching, burning and so on? It's not that hard to feed a raw meaty bone in a crate or outside where they can't make any mess. Hell you can even feed them FROZEN (zero mess!) if you need to. :\