Wow! Cat licking is sorta antiseptic. I have used triple antibiotic creme on a cats rump, but not around anywhere it could be licked. If the claw is still in place and not ripped out from it's socket, and bleeding has stopped, you might be OK.Keep the cat inside, you have to make the call on the vet, but I have seen a few of what looked horredous wounds on a cat heal by themselves. Post a picture, I'm sure some on-line vet here can help.....