Acne scars in medicine refers to acne scars, generally due to acne in the inflammatory phase, the patient through improper operation, such as extrusion, scratching and so on to make the subcutaneous fibrous tissue abnormally hyperplasia caused by acne scars effect of medical ointment: asiaticoside ointment, polysulfonic acid mucopolysaccharides cream, azelaic acid gel. 1. Ascorbic acid ointment: Ascorbic acid is an active ingredient extracted from the plant Centella asiatica, which inhibits inflammation, promotes wound repair and reduces the formation of scars. It also has antioxidant, whitening and lightening effects. It is effective in repairing post-acne wounds and inhibiting the formation of scars. 2. Mucopolysaccharide polysulfate cream: the principle of mucopolysaccharide polysulfate cream in treating acne scars is to promote the local blood circulation of the skin, and has the effect of promoting the regeneration of normal connective tissue. 3. Azelaic Acid Gel: For recurring acne with a tendency to leave acne scars, topical application of 15% to 20% azelaic acid gel can be used for improvement. For patients with acne scars, it is recommended to go to a regular hospital in time, under the guidance of a professional doctor for early treatment, the recovery effect will be better.