Our cat has had some health problems recently and the vet is at a loss. The first symptom was excessive scratching that caused open wounds. Additionally, several times a paw was swollen to two/three times its normal size. Kitty is on a new diet for allergies. Mold was considered, but scab tested negative. Ears are fine...no mites. Kitty is on antibiotics, but no positive results. Anyone have any ideas? This has been going on for over a month now.