He isn't friendly enough to put in the cat carrier, or I'd take him to the vet. He must've gotten into a fight or something because he had a wound that burst around his outer ear. Now it's raw skin. The entire back of his ear is exposed, and it looks painful. Would it be safe to put some antibacterial cream on it. He would be able to rub his paw on his ear and lick it off. I want to help him if I can.