We had a post once about "what your favorite/least favorite thing about BFing" THIS was my least favorite thing, lol.......
Other than the nursing necklace which has already been suggested a few times, I don't really have anything new to offer......although if he's getting really bad (and hurting you) maybe try putting a mitt on his hand.....he shouldn't be able to get it off without the other hand, lol.....maybe it'll be a good distraction or he'll finally get it