getting my knuckles back to "normal"

I have been biting two knuckles for the past couple years. They are red, swollen and the skin is thick, and tough. I just started using this thing called "hoof hands-kick the habit" which makes my knuckles taste nasty to keep me from biting. It was been working so far, much better than trying to use band-aids. I also frequently rub Eucerin's Aquaphor Healing Ointment Advanced Therapy and A&D First Aid Ointment into them. Does anyone know of any other products I can use to get my skin back to somewhat normal?