Cosmetic laser removal of pigmentation is a method used very much in recent years, but as a kind of traumatic method of removing pigmentation, there will be scars on the face after the operation, and even anti-blackness will appear. Therefore, only with proper post-treatment care, the effect of laser spot removal can be maintained, and it is necessary to pay attention to the following aspects: 1. After laser treatment, many patients will feel that the local skin will be red and swollen, and there will be tingling or burning sensation, and at this time, they should avoid scratching and rubbing, and they should apply cold compresses and use soothing and calming medicines externally to alleviate the local reaction caused by the laser; 2. After laser treatment, within 4 weeks, we must do strict sun protection, wear hats, sunglasses, and even apply sunscreen to prevent or reduce the appearance of post-inflammatory hyperpigmentation; 3, within 7 days after the operation, we must strictly prevent infection and avoid entering polluted environments and contacting with water; 4, within 7 days after the operation, due to the inflammatory reaction of the skin, the water is easy to be lost, which leads to skin dryness, so we should insist on the use of postoperative medical repair cream, repair cream, or repair mask, in order to achieve moisturizing and repairing of skin. Repair mask, in order to achieve the purpose of moisturizing and repairing; 5, postoperative should be appropriate to supplement water and vitamin C, do not eat spicy stimulating food, do not eat spinach, cilantro and other light-sensitive foods, eat more fresh fruits and vegetables, to prevent the occurrence of hyperpigmentation; 6, to keep the trauma clean, need to comply with the doctor’s instructions to apply antibiotic ointment; 7, to avoid strenuous activities, to prevent sweat contamination of the trauma; 8, if the history of retinyl chloride drug use, it is recommended to discontinue medication for half a year. If there is a history of retinoid use, it is recommended to stop the drug for half a year before receiving treatment.