Cystic acne is a common skin disease, which is generally caused by endocrine disorders and is related to hormone secretion disorders. In case of cystic acne, attention should be paid to avoiding scratching, preventing infection, and insisting on the use of anti-inflammatory drugs, such as Baiduobang, which can effectively treat cystic acne, alleviate skin itching symptoms, and control the development of the disease; Attention must be paid to medication according to the course of treatment to prevent repeated illness; Attention should be paid to early treatment to avoid further aggravation.