How about laser scar removal? If once a mature concave scar has been formed, the skin presents a rugged appearance, and laser grinding treatment can be considered at this time. Compared with mechanical grinding, laser grinding does not bleed and does not need to be covered with gauze after grinding. Compared with microcrystal grinding, one laser grinding can achieve the effect of multiple microcrystal grinding. Although it is an advanced technology that can adjust the peeling thickness, it is only suitable for shallow scar correction. According to the length of wavelength or the light source material of laser, laser can also be divided into many kinds. The laser that destroys brown or melanin is mainly used for spots or freckles, while the laser for scar treatment plays a role in removing epidermis. In addition, laser can selectively treat vascular diseases, so according to different symptoms, the specific laser scar removal methods are different. In the process of laser scar removal, CO2 laser and Er-YAG laser can vaporize the tissues around the scar, thus giving local tissues a chance to regenerate and repair. Through treatment, the skin appearance can be significantly improved. If it is only a slight or moderate dent scar, after one treatment, sometimes satisfactory results can be achieved. After laser scar removal, there are many places to pay attention to. If you are exposed to strong sunlight, melanin will accumulate, which will make your face black. Therefore, outdoor activities should be avoided as much as possible for three months after operation. However, this does not mean that you should not go out. In addition to avoiding skiing, the seaside or the wild, you must apply an anti-ultraviolet agent before going out in your daily life.