When the skin barrier is damaged, attention should be paid to daily care, as well as needle clearing and medication in the treatment of acne vulgaris. 1. Daily care: when the patient has damaged the skin barrier, should pay attention to sun protection, correct washing, and temporarily stop make-up, in addition, also pay attention to a light diet, ensure adequate sleep, emotional control. 2. Medication: When patients have closed mouth acne, you can use adapalene gel and Vitamin A cream under the guidance of a physician for external use, and it should be noted that Vitamin A cream needs to be used to avoid light. Chemical resurfacing methods such as salicylic acid and fruit acid can also be used to reduce the occurrence of closed acne. 3. Physical treatment: When patients have more closed acne, they can go to the hospital and use the method of needle clearing to discharge the stagnant keratin and sebum inside. In daily life, should avoid squeezing and scratching acne, so as not to leave inflammatory hyperpigmentation or scarring, the need for medication and other treatments are recommended to regular hospitals, consulting the guidance of specialists, do not blindly use their own medication.