Buy Xuan paper cut into 10*4cm strips, fold in half along the long axis and unfold, with latex gloves spread one gram of powder evenly in the strips, then fold the Xuan paper in half, wrap the powder in the middle, fold twice again along the long axis, fold fine and roll the Xuan paper into paper twists, soak the paper twists in sesame oil, drain the sesame oil and set aside. Both the operator and the patient should be protected accordingly when using it (mask and gloves and goggles). Hold the paper twist with metal tweezers, light the paper twist with a fire engine, and if there is an open flame, find a spoon to press out the open flame and smoke the affected area, at least one paper twist at a time. Wu Hao, Department of Oncology, Guang’anmen Hospital, Chinese Academy of Traditional Chinese Medicine