To a certain extent, laser spot removal is a destructive treatment, which can damage the epidermal cells in a large area. If the post-operative sunscreen and care work are not done well, pigmentation may appear, and it will take some time to recover; 2, dry and cracked skin: laser spot removal needs to peel off the skin’s stratum corneum, and after treatment, the skin is prone to water loss, vasoconstriction and slow blood flow when it encounters cold environment, which will cause skin tightness and wrinkling, and even dryness and cracking. 3. Local redness: after laser spot treatment, the skin becomes thinner and more brittle. When exposed to heat, sports or emotional excitement, the blood vessels expand, blood flow accelerates, capillaries stand out, making the face red and red. After laser blemish treatment, candidates must follow medical advice, take proper care, do a good job of hydration and moisturizing, try not to put on makeup within 1 week after treatment, pay attention to sun protection on a daily basis, follow the treatment course and have regular follow-ups in order to get good treatment results.