I just got the same problem with my wall hammer. At first I put gobs of superglue on the dead rotting parts, but I believe that it goes deeper into the skeleton than what I could get to. What solved it for me was I fragged off the dead parts with a dremel, straight into good tissue, and then sealed it off on the side with superglue, that way when it healed it was healing from good tissue and not the bad. Hope that makes sense.