They found that rubbing a few drops of breast milk onto your nipples (or using nothing at all!) (cindyandjana.com)
All you need to do is clean your baby's face with water and then using a cotton ball or a soft cloth, add a few drops of breast milk and let it air dry without wiping it off. (thankyourbaby.com)
During this painful time period, express a few drops of breast milk for each nipple after every breastfeeding (it will make them heal faster) and air dry your nipples often. (easybabylife.com)