Thanks to all of your advice, Cocoa is not licking anymore! I took her off chicken and beef. I'm just adding a little roast turkey form the deli to her food ( science diet and Nutro) I'm also using Vet's choice skin and coat conditionioner in her food, it's an oil. That has helped her belly sores! Since i first posted she hasn't licked! It's working. she's so content now and so am I.
Today she didn't even need her tavist! I'm so happy!
Thanks everyone, you are the best!