Laser blemish removal is a method of rapid decomposition of pigment particles by instantaneous photothermal action on the skin patches to reach the deeper layers of the skin. Generally speaking, there is no harm in laser spot removal, but if the operation or care is not proper, some adverse consequences may occur, such as pigmentation, skin infection, scarring and other problems, etc. 1. Pigmentation: It may be related to improper care after laser spot removal. If you do not strengthen sun protection after laser spot removal, stimulated by ultraviolet radiation, or eat spicy and stimulating food, it will lead to pigmentation; 2. Skin infection: If the disinfection is not complete during the operation, or after scratching the weak skin after the operation, it may cause the skin to break and bleed, and if you unintentionally get water, it may also cause the skin to be invaded by bacteria and become infected; 3. If the energy is not set properly and the deep layer of the skin is damaged, the deep layer of the skin will be damaged and scar will be formed in serious cases; 4. After laser blemish removal, pay attention to daily care, do not get wet within a short period of time, avoid strong light exposure, do a good job of sun protection, and have a light diet. If infection occurs, the wound should be cleaned up in time, and oral antibacterial medication should be taken at the same time. If scarring occurs, treat it with scar removal medication as soon as possible to prevent it from getting worse. If your eyes are burned, you should go to the hospital immediately to avoid adverse consequences.