The acne on the face of 15-year-old children belongs to acne, which can be treated by general treatment, medication, physical therapy and other measures. 1. General treatment: keep the skin clean and hygienic, moisturize and control oil, use mild moisturizing milk externally, avoid staying up late, live a regular life, keep the bowels smooth, eat less spicy food, and avoid squeezing. 2. Drug treatment: you can use topical retinoic acid cream, benzoyl peroxide gel, fusidic acid cream and other drugs for treatment; serious symptoms can take doxycycline, minocycline, isotretinoin and other drugs for treatment. 3. Physical therapy: you can take LED blue light or red light irradiation, you can also take strong pulse laser, photodynamic and other physical therapy measures. The 15-year-old child acne, it is recommended to go to the hospital in time to check, follow the doctor’s instructions for treatment.