The time when a mask can be applied after laser spot removal needs to be decided according to the way of laser treatment done and the function of the mask, and it is generally recommended to choose to use a medical mask. I. Laser treatment methods: 1. Non-invasive laser surgery: usually, non-invasive laser can be used 24 hours after the removal of spots, the skin stratum corneum is repaired by itself, and then a mask can be applied to assist the removal of pigment spots to enhance the efficacy and reduce the probability of side effects, try to use medical mask. 24 hours before you can choose to use physiological saline ice or ice cube ice, which can effectively relieve the abnormal skin condition; 2. Invasive laser surgery: such as Q laser, there will be scabs after treatment, about 7-10 days to fall off, so it is generally recommended that the scabs fall off before applying the mask. 2. Mask function: At present, some medical repair masks can be used after surgery, and at the same time can speed up the healing and repair, so you can choose medical masks as early as possible under the doctor’s suggestion. In addition, after laser blemish removal surgery, patients are advised to pay attention to sun protection, pay attention to local skin cleanliness and hygiene, eat a light diet, avoid spicy and stimulating food, eat more fresh fruits and vegetables rich in vitamin C and vitamin E, and prohibit smoking and alcohol.