Nipple eczema is a limited eczema that occurs around the nipples and areola and is often painful or itchy in breastfeeding women. The disease is a type of limited eczema, which often occurs in lactating women due to local dampness caused by milk secretion, poor local blood circulation, and tiny ruptures caused by infants sucking on the nipples. It often presents as a reddish-brown rash with visible vesicles, which can crack when there is infiltration, along with itching and pain, and is more difficult to treat. The disease itself does not affect the quality of milk and breastfeeding, but repeated irritation of the affected area is not conducive to healing. It is recommended that after breastfeeding is stopped and the milk reflex disappears and milk secretion is reduced, appropriate topical medications are chosen according to the characteristics of the trauma. The most commonly used is an oil, such as Denide cream + erythromycin ointment + zinc oxide ointment three ointments mixed in equal volume ratio, applied externally, twice a day. It is worth reminding that the disease generally has a short etiology. If recurrent episodes persist (>2 months) or occur on one side, one should be alert to the occurrence of eczema-like carcinoma of the breast. In addition to stopping breastfeeding and keeping the area dry and fresh, do not wear tight clothing, such as overly tight bras, do not overstimulate, do not eat spicy and stimulating foods, do not eat alcohol, beef and mutton, and other diets.