If your nipples hurt like pins and needles during breastfeeding, it is mostly due to cracked nipples that cause pain when the baby suckles. Preventive measures, such as applying a few drops of milk to the nipple and areola after each feed, are needed to avoid cracking. It is also important for the baby to suckle properly, for example by taking most of the areola in the baby’s mouth, to avoid cracked nipples as well. In addition, if localized cracks have already appeared, you can use erythromycin ointment to apply to the local area, but pay attention to each breastfeeding before the erythromycin ointment must be cleaned before breastfeeding the baby, so that the local wounds will soon heal and the pain will disappear. If the local redness and swelling occurs, it is recommended to go to the hospital as soon as possible to give appropriate treatment.