When applying cactus to treat mastitis veins externally, the time of external application is usually 2-3 times/day, and it is usually applied for about 1 week, which can basically make the condition get relieved. In addition, for the application of cactus external compresses for the treatment of mastitis process, if the pain and swelling relief is not obvious or symptoms aggravated by the emergence of high fever and so on, we must promptly go to the hospital for medical treatment, because sometimes due to the traditional Chinese medicine can not be effectively controlled, it may make mastitis develop into acute suppurative mastitis or mammary gland abscesses. Therefore, once the development of more serious mastitis, this period is not suitable for the external application of cactus, should be timely to the hospital, after the diagnosis is clear, should be surgical incision and drainage, the breast abscess completely open, through the regular change of medicine to achieve a complete cure for the purpose of mastitis.