When breastfeeding, the baby has no sense of appreciation for the nipple, so it will do its best to suck on it, which will cause pain in the nipple. The pain is actually caused by the baby’s damage to the nipple and is accompanied by an obvious local infection, which requires local cleaning and the application of erythromycin ointment to promote the recovery of the infection and avoid further aggravation. During the treatment process, it is best to rest one side of the breast and use the other side of the breast without symptoms for normal breastfeeding for 3-5 days before breastfeeding. During the recovery process, a breast pump can be used to maintain breast milk production. If the patient has such a reaction in both nipples, it is recommended to change the breastfeeding method and use a breast pump to suck out the milk for manual breastfeeding. The process of breastfeeding requires the cooperation of the baby and the mother, and good breastfeeding habits can effectively prevent this from happening.