Welcome to PT. I'm so sorry to hear about your cat. Hopefully you'll be able to find a vet that will help Tima. It either sounds like allergies or the herpes virus which can't be cured. If it is herpes then giving him lysine powder in his food is supposed to help boost his immune system. I'd also look into changing his diet to a grain free one if possible. I was using Innova Evo dry, then Nature's Variety dry and now I'm using Natural Balance Green Pea & Chicken. Good luck.