If the patient shows that the breast skin has redness and itching, the causes are: first, local inflammatory reaction, which can be seen in acute mastitis that occurs during breastfeeding. Second, plasma cell mastitis, some patients will show fever, usually also need to choose anti-inflammatory treatment or with topical drugs, including the application of Jinhuang San, serious if the formation of abscess, need to choose the operation for incision and drainage as well as intermittent medication change. Some patients are malignant tumors occurring in the breast, and the early stage will also show local skin discomfort, itching and pain, which is commonly seen in inflammatory breast cancer or nipple eczema-like breast cancer. Malignant tumors need to be further treated by surgery, and after surgery, intravenous chemotherapy and radiotherapy should be supplemented.