To buttress David's point, it might be due to improper latching. To help your baby latch proper, if your baby is suckling on the left breast for example, your left palm should be under your baby's buttock, his head resting a little above ur left elbow, u relax on a sit and put the baby to breast, that way, ur nipple will be inside d baby's mouth while the baby latches on the areolar. Pls do not stop breastfeeding your baby, take fruits rich in vitamin C to help the nipple heal on time and if there's a crack, you can apply coconut oil. I hope this helps!

Nipple pain in a breastfeeding mother is common but not normal. It often happens when mothers first start breastfeeding and is usually due to a baby not attaching deeply.