severely cracked nipple!

omg it is so bad it hurts worse then labor! lol and it's on my breast my daughter prefers. it makes more milk. she will scream at night and not sleep until she gets that boob. she also wont drink out of a bottle and wont take my milk in a sippy cup. she will only take my breast. so it's not healing... cause every time she nurses it opens backs up. any suggestions? im using lanolin and soothie pads. its not infected..at least my doc said it didn't look to be. I hope someone can relate and give me rips!