The actual laser is a great way to get the most out of your time and money, and it’s a great way to get the most out of your time and money. 1. medication: for laser treatment of the red spot left behind is mainly due to the laser photothermal effect, the affected area can follow the doctor’s instructions to use growth factor gel drugs, promote the repair of traumatic skin. You can also use medical skin care products under the guidance of specialists and pay attention to moisturizing. 2. pay attention to sunscreen: sunlight in the ultraviolet ray on the laser treatment at the skin may increase damage, avoid high intensity sunlight direct irradiation, so as not to cause pigmentation, so need to pay attention to sunscreen, can wear long-sleeved clothes or go out to play the umbrella. If the red marks are not relieved or aggravated after the laser treatment of flat warts, it is recommended to go to the regular hospital in a timely manner, and follow the doctor’s instructions for treatment.