Can CBD oil be used to treat a cat who keeps biting her fur and creating open sores?

I am guessing that it would help. First off, go to veteranian or get a second-opinion from a vet, to make sure of what the cause of the problem is. You may get a consult with Dr.Richter http://holisticvetcare.com/about-us/clinicians/gary-richter.html I would find out the correct dose which is determined from the cat's accurate weight:and then "start low, and go slow", which means give a low dose, 1 to 3 x a day, and slowly increase if symptoms not improving. best of luck with your kitty

drraisen