There is no easiest way to remove flat warts in children, and prompt medical attention is recommended. It can be treated by drugs, surgery, physical and other methods. 1. Drugs: you can choose salicylic acid, which can promote epidermal exfoliation to achieve therapeutic effect. Interferon α-2b cream can also be used externally, which can inhibit viral replication and enhance cellular immunity. 2. Surgery: After the doctor carries out the routine disinfection, the doctor uses the surgical blade to cut the complete thin layer of warts, after the local anesthesia in the upper arm to make a small incision, the warts will be planted deeply in the incision, to stimulate the body to release the cytokine, to produce the antivirus antibody to clear the epidermis of the human papillomavirus, in order to reduce the recurrence rate of the purpose. 3. Physical: Physical therapy such as carbon dioxide laser, liquid nitrogen freezing, microwave therapy, etc., all have a certain effect on the treatment of flat warts. For those who don’t tolerate pain, you can pre-coated lidocaine cream for moderate local anesthesia. In addition, the children of flat warts to go to the hospital in time, follow the doctor’s instructions for treatment, to avoid delaying the condition.