Acne is usually referred to as acne vulgaris in clinical practice. It is usually related to factors such as exuberant secretion of sebaceous glands, abnormal keratinization of the perifollicular zone, and Propionibacterium acnes infection, etc. It can be improved or removed by means of general treatment, medication, physical therapy, and chemotherapy. 1. General treatment: acne on the forehead should first pay attention to dietary regulation, to minimize the consumption of dairy products and foods with high sugar content, pay attention to a balanced diet, and to ensure adequate sleep, avoid staying up late, pay attention to sunscreen, but also do a good job of personal skin hygiene. 2. Drug treatment: you can follow the doctor’s instructions for external use of retinoic acid cream (such as adapalene gel, etc.), benzoyl peroxide gel, fusidic acid cream and other drugs. When the symptoms are serious, systematic medication can also be used under the guidance of the doctor, such as retinoids (such as isotretinoin, etc.), estrogen-progestogen compound preparation (such as cyclopropylprogesterone and ethinyl estradiol compound preparation, etc.), glucocorticoids (such as prednisone, etc.) and other drug therapy. 3. Physical therapy: patients can use red and blue light irradiation therapy, photoelectricity therapy and laser therapy under the guidance of doctors to improve acne symptoms. 4. Chemotherapy: Acne is often treated with chemical peels such as fruit acid peels. It is recommended that patients with forehead acne go to regular hospitals for timely consultation and adopt standardized treatment methods under the guidance of doctors.