My poor little Ichan (E-chon) had fleas for a long time and after we got rid of the fleas, then he was constantly scratching and covered in scabs and lost a lot of weight. When I took him to the vet they said he probably had flea allergies and gave him Clavamox drops. Since then he had stopped scratching as much, his scaps have healed and his coat is growing back; but its still thin in some spots and he has gained as much weight as his brother who I brought home at the same time. I usually by them Friskies Seafood Sensation or Meowmix Seafood Medley because that seems to be the flavor they like. Because of my budget I don't by the canned food but would that help him at all?