I just purchased a rescue Chi for my sister in Phoenix, AZ 9 days ago. He doesn't have fleas and we just changed his food from dried non-grain to raw meat -- chicken, beef, turkey. Treats are freeze-dried raw chicken strips. We were hoping with a cleaner diet that the itching would stop. I read about how trying fish oil might improve Jimmy's itchy skin, but not sure of the brand to buy. Does anyone have any insight as to what to try to help this little guy feel better and not scratch and lick himself raw?