Make sure that the wrap is snug, but you can still fit a finger in the top of the bandage, that will help prevent it from getting too tight. Then I would get some no crib spray, or cayenne pepper, and coat the wrap with that to discourage her from chewing on it. When wrapping her leg, make sure that you are using sheet cotton underneath the vet wrap, or if you are just wrapping a small section, use gauze pads, as there needs to be some protection between her leg and the vet wrap. If you are really worried, is there a someone with lots of experience wrapping legs that could help you out? Good luck, hope that she heals well.