I have a 3 week old who has been nursing wonderfully. One of my nipples is flat and the lactation consultant at the hospital recommended a nipple shield to help on that side. He now won't accept my other nipple without the nipple shield and my nipples are cracking horribly (like open wounds on both nipples). Good news he is gaining weight well and seems to be getting enough milk. But how do I get him off the nipple shield and take care of my nipples?