Answer: Hello dear, The cause of sore, cracked nipples can also be from a yeast or Candida infection in the baby or the mother or both. ... If the nipples become cracked or bleed, the latch may need to be corrected. Women are advised to keep on breastfeeding, as it will actually help the nipples heal. continued) gently rub your nipple on your baby's lips to encourage him to open WIDE, you must get as much of the nipple in the mouth as you can, again aim toward the roof of the mouth. The baby should never just suck on the tip of the nipple (that will destroy your nipple quickly) the areola needs to be in the mouth too. If the latch isnt good, unlatch by inserting your finger in the corner of the mouth (like a fish hook) to break the suction. Try to latch again. If your nipples are already injured ie: lacerations, cracked, bleeding, it will take 1 - 2 weeks to completely heal them upon correctly latching every single feeding, along with using lanolin cream. Good Luck and dont give up.