Around October or so of last year, one of my cats got the itchies. I put some flea medicine on him, but no fleas jumped off, and he didn't get better. By December, he had a couple of bald spots where he had scratched himself silly, so I took him to the vet thinking he had mange. The vet told me it was probably an allergy, and he gave me a spray to put on him. The spray helped. My cat stopped scratching as much, the redness went away, and his hair grew back. But I eventually ran out of spray, and his allergy came back with a fury. His mouth and chin looked like meatloaf. I tried changing his diet. I've changed it twice now, most recently to this:
In the meantime, I went to the pet store and got some anti-itch spray. His mouth and face cleared up, but now he's got a bald spot on his head and on the back of his shoulders, and they both appear to be getting worse in spite of the pray and in spite of the new cat food.
So I called the vet again today. They said there's a lot of allergies in our area, and there's not much I can do except wait it out. They said they can give my cat a shot, but that will only give him temporary relief. I can also give him benedryl or Zirtec.
Is there anything else I can do? He's seven years old, and I don't want to fight this for the rest of his life. Are there allergy tests I can give him? Is there another food I can give him? Anything?