Inclusion Criteria:  - 1. Patients with acne vulgaris aged from 16 to 45, male or female. 2. Patients who meet the western diagnostic criteria of mild and moderate acne vulgaris and the differentiation criteria of TCM syndrome (15,16).  3. Patients who voluntarily join this study with informed consent. 4. No acne drugs were received within 1 month, and no external drugs related to the disease were used within 1 week.  Exclusion Criteria:  1. Patients with severe primary diseases such as cerebrovascular, cardiovascular, liver, kidney and hematopoietic system.  2. Participants will be ineligible if they ate pregnant or lactating women, and those with fertility plans in the next 2 years.  3. Patients who do not meet the inclusion criteria, fail to use the medicine according to the regulations, fail to judge the curative effect, or incomplete data affect the judgment of curative effect or safety.  4. Allergic constitution and allergic to the drug ingredients studied in this project.  5. Cicatricial constitution. 6.Occupational acne caused by chemicals, acne caused by drugs.