Molly has been on a diet of Purina kitten chow, ever since she came to live with me(six months ago). It was about a 3-4 weeks ago, I started her on Fancy Feast along with her regular food has a treat. It seems as if her ulcers happened around the same time. I discontinued the Fancy Feast on Monday, when my husband realized maybe shes allergic to the wet food. She also has a lesion on her chin in which it felt like a knob along side of it....I'm very confused about Molly's situation. It seems she has way to much going on.