A nipple shield can be used as a last resort to try and shape the nipple, allowing the baby to latch on more easily.
If the baby is not drinking enough during feedings, the mother can pump in-between feeding to increase milk supply. The mother can give the supplements of breast milk to her baby with a SNS (supplementary nursing system). This is a bottle containing pumped milk, that is attached to the breast with a little tube running into the side of the baby’s mouth, while baby is breastfeeding. This will help the baby learn to breastfeed while being supplemented with the mother's milk/donated milk or formula. This gives the mother and her baby a way to learn how to breastfeed, even while supplementing. It also prevents the mother's milk supply from dropping.