Due to the excessive secretion of oil by the sebaceous glands, which causes infection by Propionibacterium acnes, closed acne, blackheads and red papules can be seen on the face, forehead and back. If left untreated for a long time, severe acne, such as scarring acne, can appear. For scarring acne, if the scar is relatively small, you can choose compound heparin sodium allantoin gel for topical application. If the scar is relatively large, then you can choose the following ways to repair it: 1. Injection therapy: The most commonly used is the injection therapy for scarring, you can choose long-acting hormones, such as compound betamethasone injection, and 5-fluorouracil-type drugs for intra-dermal injection. 2. Laser therapy. You can go to a regular tertiary hospital for medical aesthetic treatment, such as fractional laser treatment or low-energy Q1064 laser treatment.3. Surgical treatment: such as kernel extraction of the scar, or freeing of the scar edges and skin slice transplantation.4. Filler treatment: at present, you can fill hyaluronic acid or fill certain stem cells, or SVF gel, etc. for comprehensive treatment of the scar. Therefore, for patients with acne scarring on the face, it is recommended to go to a regular hospital and under the guidance of a dermatologist for treatment. At the same time, you need to abstain from spicy and stimulating foods, alcohol, and squeezing the scar with your hands during the treatment period.