Laser blemish removal is suitable for blemishes less than 3cm in diameter and shallow in depth. It is a kind of minor surgery, and the treatment effect is related to the area covered by the blemish and individual physique, and there are individual differences. Generally, the younger the age, the thinner the skin and the more shallow the lesions of pigmentation, the better the treatment effect of laser spot removal. The selectivity of laser is high, and it only works on the pigmented tissues and will not affect the normal skin tissues. If there are not many spots on the face, the treatment can be completed in about 10-30 minutes. If the spots on the face are more stubborn and deeper, it usually takes about 2-3 times of laser treatment to achieve the effect of complete eradication. In order to achieve a better effect of spot removal, candidates can take the following measures after the operation: 1. Within one week after the operation, the treatment area cannot be touched with water, otherwise it will lead to infection; 2. If the treatment is not complete, a second course of treatment can be carried out at an interval of 2-3 months; 3. There is a possibility of recurrence after pigmentation removal, and candidates can take oral vitamin C and glutathione to whiten the skin; 4. In daily life, ultraviolet radiation should be reduced to prevent repeated stimulation and increase the volume and quantity of melanin in the facial area.