The operation steps of fire needle treatment for flat warts include local localization, skin disinfection, burning needle and needling. 1. Localization. Find the specific location of flat warts and then make a local sign, which is convenient for the next step of treatment. 2. Skin sterilization. Before the fire needle treatment, the local skin should be disinfected, 75% alcohol can be used for local disinfection, routine disinfection twice, to avoid infection in the process of operation. 3. Burning needle. Fire needles should be cauterized under the alcohol lamp to the extent that the body of the needle is white and bright, not only to achieve the effect of disinfecting the body of the needle, but also for the next step in the needling to make adequate preparations. 4. Acupuncture treatment. Should be burned to translucent fire needle quickly stabbed into the local warts, each wart should be punctured about 3 to 4 times, relying on its high-temperature stimulation, the trauma of the cauterization, high-temperature burning trauma after the scabs, scabs off to play a role in the stripping. Fire needle treatment needs to be operated under the guidance of a professional acupuncturist to avoid accidents due to improper operation.