Just a bit of advice please. Dudley has a small spot on his front leg. He has been continually licking it and is making it sore. I have been cleaning it, there is no oozing but I am having trouble stopping him licking. Should I trim the fur around it or just leave it? When I say little, on a person it is about pimple size. It is completely flat and if he hadn't been licking it I probably wouldn't have seen it. I do have some mild antiseptic cream for dogs, should I use it or just leave it?