I adopted my 2 year old tortie female when she was 6 months old, and she had issues with sores/hair loss since she arrived at the shelter when 2 months old. I finally found a veterinary dermatologist who diagnosed her with food allergies as well as inhalant allergies. She prescribed her Royal Canin PR and Atopica liquid, which has greatly reduced her symptoms, with a few sores only every 5 months or so. Does anyone out there have a cat with similar issues, and how have you been dealing with them? thanks much!