If your baby breaks the skin of the nipple, you should try to reduce the number of times your baby eats this side of the breast in order to help the skin heal. Pay attention to washing with warm water to keep the area clean and hygienic to avoid bacterial infection. If there is local dryness, you can apply erythromycin ointment to prevent the skin from rupture and bleeding due to excessive dryness. If the skin is broken and there is local blood or exudate, you can sprinkle Yunnan Baiyao surface, which has the function of stopping bleeding and promoting wound healing. You should also wear loose cotton underwear to reduce the stimulation of the local skin, which is conducive to blood circulation and promotes rapid healing of the local skin.