My cat Zara is 4, last year her lip got really swollen & whitish, we went to the pet dermatologist who declared her to have allergies, to what, we have no idea. We changed her bowls, changed her food and changed our laundry detergent. After a steroid shot it went away for a few months then came back. In trying to solve the allergy mystery we realized that we had slowly started merging in her favorite treats again, Friskies Party Mix. Last week we went out of town for the day so we left treats hidden around the house. A few days later, she is again swollen. Went through the ingredients on the treats and I "think" it is possibly the Brewers Rice that she is allergic to. I have now been to three different speciality pet stores to find treats that do not have the brewers rice in them. We have tried 4 different brands and she refuses all of them. Any suggestions besides no treats ever again?