Re: nipple shield and nipple soreness
This is a good link on weaning from the shield: http://kellymom.com/bf/concerns/child/wean-shield/
This one covers what to do about cracks: http://kellymom.com/bf/concerns/mother/nipplehealing/
I suggest seeing the LC again. Cracks could mean thrush, they could mean bacterial infection, they could mean that the baby's latch is even more difficult than previously thought. Hands-on, in person help is best when you have cracks.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"