The Chinese medicine for breast duct dilatation is called acne canker sore, and the Chinese medicine for treating breast duct dilatation includes Chaihu Liver Clearing Tang plus reduction and Tori Disinfecting San plus reduction, etc. The Chinese medicine for treating breast duct dilatation is called Acne Canker. The treatment of acne vulgaris in Chinese medicine requires evidence-based treatment, as follows: 1. Liver meridian heat syndrome: nipple overflow or nipple indentation with acne-like material overflow, red, swollen and painful breast lumps, burning when pressed; accompanied by fever, headache, dry stools, yellow urine and so on. Chaihu Liver Clearing Tang with White Flower Snake Tongue Herb and Hawthorn can be used. 2. Remaining toxins not yet cleared: abscesses collapse on their own or do not close after incision for a long time, with pus dripping and forming breast leakage, which is convergent from time to time, and there are stiff lumps or red and swollen ulcers in the local area; the tongue texture is light red or red, the tongue coating is thin and yellow, and the pulse is stringy. Additional reduction of Tori Disinfecting Powder can be used. The above prescription must be standardized under the guidance of a Chinese medicine practitioner and should not be taken by oneself.