Acne is usually referred to as common acne, which can be improved by general treatment, medication and physical therapy. 1. General treatment: Boys with acne vulgaris need to improve their living habits, eat a light diet and avoid excessive intake of high-sugar, greasy food; at the same time, pay attention to skin cleanliness and do not scratch the affected area to prevent secondary infection. 2. Drug treatment: patients can follow the doctor’s instructions for external use of retinoic acid drugs, has the effect of regulating cell differentiation, dissolving acne, such as adapalene, isotretinoin and other gels. In addition, patients are advised to choose benzoyl peroxide, which can kill Propionibacterium acnes and help treat acne vulgaris. 3. Physical therapy: For patients with moderate or severe lesions, photodynamic therapy can be chosen, based on the photodynamic effect releasing energy to kill Propionibacterium acnes, which can help reduce inflammation and treat acne vulgaris. It is recommended that men with acne vulgaris go to a regular hospital and cooperate with the doctor for standardized treatment.