Flat warts on the face are usually cured in a week after laser treatment, but it is possible for them to come back. Laser is one of the most common treatments for flat warts, utilizing the photothermal effect to produce high temperatures to destroy the warts. Laser treatment can easily damage the skin around the warts, so you need to take care of the warts after the laser treatment. The actual laser is actually a great way to avoid touching water, eat less spicy and irritating food, avoid sun exposure, don’t touch or scratch the treatment area with your hands, and pay attention to the nursing care, which can be fully recovered within a week. It is best to use iodine or alcohol to sterilize the laser every day to avoid infection, redness or pus oozing out of the wound can be coated with clindamycin gel or mupirocin ointment and other ointments to promote recovery. A small number of patients will recur after laser treatment, and after recurrence, they can be treated again with laser, electrocautery or freezing. Laser treatment should be operated by a professional doctor in a professional organization. The medication should be used according to the doctor’s prescription.