Vitamin c has whitening effect. Applying its powder to the scar can effectively reduce the pigmentation of the scar and gradually restore the healthy skin color of the injured skin. Vitamin E has a moisturizing effect, which can easily penetrate into the subcutaneous tissue of the skin and enhance the elasticity of the skin. Drugs, mainly including steroids and silicon preparations, are recommended to be used under the guidance of a doctor, and irregular products should not be used. In addition, laser can be used to treat scar removal. Laser with a certain wavelength can shrink the capillaries in the scar, shrink the scar and reduce the red mark. Other lasers can improve scars by stimulating the regeneration of collagen and elastin.