Your dog is scratching. Again. The ears are red and warm, the paws are constantly licked, and the skin around the belly looks irritated. You have tried changing shampoos, tried antihistamines, had your vet rule out fleas — and still, your dog is uncomfortable. If this sounds familiar, the answer may be sitting in your dog's food bowl. Food allergies are one of the most underdiagnosed causes of chronic skin problems in dogs. Research suggests that if your dog is getting more t