OUch! I feel for you, that sounds painful! This is probably the same thing you have heard before, but have you tried taking it away when she bites? My ds did the yanking off for awhile, then I started to figure out when he was almost done, then I could anticipate it and break latch before he did. Here is another option if you are truly in need and if your dd will take it, how about a nipple sheild. I know it is usually used in the newborn stage, but it sounds like you need one till your nipples heal at least. And, for leaving the house, how about breast shells that you put in your bra? I have some if you would like me to send them to you. I will have to look and see if they are all there though, dd got her hands on them once.