Nonsurgical Treatment of Scars: For keloids and large areas of hypertrophic scars in non-functional areas, surgical excision is not appropriate. The整形 department of Guangzhou Armed Police Hospital considers non-surgical treatment for such patients. There are many methods of non-surgical treatment, which should be selected based on the patient's physical condition and the characteristics of the scar. 1. Pressure Therapy: This method is suitable for scars with a larger area that are not suitable for radiation therapy or local drug treatment. The exact mechanism of pressure treatment for scars is currently unclear. 2. Radiation Therapy: Early postoperative radiation therapy is the best measure to prevent recurrence. Proper use of radiation therapy for keloids has not been found to cause serious complications after long-term follow-up, so radiation therapy is still advocated, especially for stubborn keloids. Other forms of radiation therapy, such as electron beams, have also been used in the treatment of keloids. 3. Chemotherapy: Direct use of steroids for a period of time can thin the skin at the treatment site, completely stop the growth of granulation tissue and fibroblast proliferation in the wound that is tending to heal. 4. Other therapies: In addition to the aforementioned methods, people have also tried laser, cryotherapy, zinc tablets, wax therapy, iontophoresis, ultrasound, silicone membranes, etc., for the treatment of hypertrophic scars and keloids. The efficacy reports vary, but all lack a large number of case controls and follow-ups. (Editor-in-charge: zhuanjia) / Nose job repair website http://www.zhengxing.me/xiangmu/2010-7/content_82_5734.html