Chinese medicine treatment for plasmacytic mastitis is divided into internal and external treatment, as follows: 1. Internal Chinese medicine: generally divided into two types of evidence, Chinese medicine can be identified, usually adding Chai Hu or Qing Pi type drugs, which can lead the medicine into the liver meridian. White flower and snake tongue herb has the function of clearing heat, dispersing nodules and activating blood circulation. Hawthorn is often used because of its ability to eliminate fat and reduce the overflow of lipids in the ducts of the breast. 2. External treatment with Chinese herbs: at the early stage of inflammation, Ruyi Jinhuang San and Anti-inflammatory San can be used for external application, which has the effect of clearing heat and detoxifying, eliminating swelling and dispersing nodules. Jiuhua cream and Red Sheng Dan are often used for the broken skin, which can dispel decay and create muscle. Chinese medicine has a strong theoretical basis in the treatment of plasmacytoid mastitis, and also has more effective treatment means. Through continuous verification, the effectiveness and feasibility of Chinese medicine in the treatment of plasmacytoid mastitis has been confirmed.