Flat warts can be cured by laser treatment. The actual laser can be used to remove the warts and also the viruses contained in them through high-temperature vaporization and carbonization, and then the treatment of flat warts can be more effective. However, after destroying the warts through laser treatment, the virus usually still exists as well as there is a probability of recurrence, and laser and freezing treatments can damage the integrity of the skin, which may also cause an increase in the number of warts and worsening of the symptoms. In addition, the patient should also use anti-virus and infection prevention drugs under the guidance of a professional doctor, such as micro-Acid ointment, imiquimod ointment and other drugs, to prevent postoperative infections and recurrence of flat warts. It is recommended that the patient go to the hospital in time, and under the guidance of a professional doctor to standardize the treatment.