If the nipple is cracked, the nipple can be disinfected with iodophor and the wound can be cured by applying erythromycin ointment or Bactrim ointment evenly. If the nipple damage area exceeds 30% and is accompanied by severe nipple pain, you should promptly go to the regular hospital breast surgery or general surgery, and decide whether to perform debridement and suturing after a full assessment by a specialist. In daily life, you should pay attention to keeping your nipples locally clean, wash them in time and disinfect them with iodophor, and wear relaxed, breathable, cotton underwear. You should eat a light and vitamin-rich diet, avoid eating too much spicy and stimulating and fried foods, and develop good habits of life and rest, go to bed early, get up early, avoid staying up late, and keep your mood relaxed.