Poor Drake, what a brave boy!! I definitely agree to take the bill to the neighbor, after all, his dog was on your property. For the wound, see if you can put any kind of gauze wrap on it with some antibiotics. My sister's dog Bear got into a nasty fight with a raccoon they think it was and he received a pretty bad gash to his leg, where his tendons were exposed. The vet told them to keep it clean and to keep gauze bandages on it until it healed. I think they had to change the bandages several times a day and to keep the dog calm. I hope he's ok!! Keep us posted!