Acne is a common chronic inflammatory disease involving the sebaceous glands of hair follicles. It manifests as oily skin, acne, papules, pustules, and in severe cases, cysts and nodules. The etiology is complex and is mainly related to endocrine disorders, abnormal keratinization of follicular sebaceous ducts, skin microbial infections, and local immune reactions. Other factors such as genetics, diet, drugs, gastrointestinal dysfunction, endocrine disorders, mechanical stimulation, cosmetics, poor hygiene habits and certain occupations can also trigger acne. Acne patients should adjust their dietary structure, eat more fresh vegetables and fruits, eat less spicy and stimulating foods (ginger, garlic, chili, wine, etc.), and eat less fat and sugar diet (fatty meats, fried foods, sugar and sugary drinks, etc.). 2, it is advisable to wash your face with warm water and neutral soap or acne cleanser to reduce the adhesion of oil on the face blocking pores. 3. Avoid using oily cosmetics. 4, prohibit the use of hand squeeze, can use 1-2 times a week drug mask to reduce pore blockage. 5, regular work and rest, relieve stress, avoid staying up late and mental tension. 6.Adhere to external and oral medications as prescribed by the doctor. Acne treatment is slow to take effect, and the observation period for treatment drugs is generally 4-6 weeks. After the observation period, you can consider changing the treatment plan according to the response.