Keloid scars are usually caused by excessive proliferation of subcutaneous connective tissue after trauma to the skin. For patients with keloid scars, they can be eliminated through topical medications, glucocorticoid injections, or laser treatments. 1. Topical medication: most of the scarring creams on the market today are silicone-based gels. However, scar creams are suitable for the prevention of scars or initial superficial scars, and are generally not effective for old scars. 2. Glucocorticoid injection: For patients with keloid scarring, glucocorticoid can be injected into the skin lesions as prescribed by the doctor to improve the situation, such as injecting triamcinolone acetonide solution. 3. Medical aesthetic equipment operation: medical aesthetic means have a certain degree of efficacy for old scars, its principle of action is to make the scarred skin to restart the self-repair mechanism. Common treatments include fractional laser, gold microneedling or roller microneedling. The treatment should be supervised by a doctor, and some patients with severe scarring are not suitable for this treatment. For keloid patients with scarring, it is recommended to go to a regular hospital and be treated under the guidance of a professional doctor if they feel that their scarring affects their aesthetics.