Hill's Science Diet Light Formula Feline Maintenance Cat Food Review

I have 2 cats and one of them is very allergic to most cat food brands. I used to buy Whiskas for him but he would start licking the inside of his legs up till he had nothing but bare skin on them and sometimes it would even bleed. I was very concerned and talked to a vet about it and was told that most likely my cat is allergic to dry food that I was feeding him at the moment. I was reccommended Science Diet and am feeding him that ever since. Smokey's allergy didn't go away completely but he is slowly getting better.

 The only bad thing about this food is that it is very expensive. Its price just went up $2 and now a small bag of it costs over $10.