Anyone have any experience trying to figure out what food is causing a food allergy? I went to a new vet and he gave a shot and said if the shot worked, then it was an allergy. Now that the shot has worn off, Palas has formed bloody, hairless patches above his eyes and in front of his ears (the classic food allergy sign, I've read). But my vet says he wouldn't pay the $500-$800 it costs to see a dermatologist about an allergy test for him. I don't know how much its supposed to cost, but his suggestion is to go on medication for it long term. I don't really like that idea. I'd prefer something more natural like food that doesn't include the allergen. So I need help deciding where to begin figuring out what it is or what food will not make him break out like this. Of course, I still pet him and give him attention and play with him, but I can't help but be repulsed by his huge bloody patches.