The methods of scar repair include silicone gel patch, topical drug application, laser treatment and surgical repair. 1. Silicone gel patch: silicone gel has viscous property, which can be automatically adhered on the surface of the scar. It can increase the water content of the stratum corneum, then some water-soluble proteins diffuse on the surface of the skin, and its distribution in the mesenchyme is reduced, meanwhile the fluid pressure is decreased, the scar can be softened and matured quickly, and then the color of the scar tissue becomes lighter and similar to the natural skin color. 2. Topical medication: Silicone gel, allantoin gel and other topical medications are mainly used to soften the connective tissue, moisturize the skin and lighten the pigmentation, etc., which can lighten the scars, but the effect is slow, mainly in the proliferation of scars, and generally need to be used for a long period of time. 3. Laser treatment: laser irradiation makes the collagen in the dermis rearrange and newborn, and also can gasify the proliferating tissue at the scars, so as to achieve the purpose of improving the appearance of scars. 4. Surgical repair: There are four common methods. Scar excision suture: directly excise the original scar and then suture. Skin abrasion: directly abrade the superficial dermis and epidermis of the scar, almost can not leave a scar scar. Scar Release Local Reshaping: Remove the original scar tissue and use the surrounding normal skin tissue to form a flap to do cross transposition to repair the scar. Scar excision free skin grafting: Surgical excision of the existing hyperplastic scars and transplantation of new skin from other parts of the body. If you have the need to repair scars, please go to a regular hospital in time and under the guidance of a specialist to avoid adverse consequences.