Hi ladies! Just thought I'd share this...I recently took a breastfeeding class and they told us that after the baby is born the hospital uses a lanolin cream for your nipples. Apparently though, if you have an allergy to wool (I do) there is a property in the cream that will give you the same kind of allergic reaction. I'm sure this doesn't affect too many people, but I was glad they told us about it so I'm passing it along!