The operation of fire cans includes fire throwing method, flash fire method, cotton sticking method and wine dropping method, etc. The specific operation is recommended to be carried out by professional doctors. 1. Throwing fire method: the flammable cotton or paper is ignited, quickly put into the fire pot, and at the same time, quickly inverted the fire pot in the operation site can be, this method is more suitable for use in the side of the horizontal plucking. 2. flash fire method: use tweezers to clip the cotton ball dipped in the appropriate amount of 95% alcohol or directly use a long strip of paper, will be ignited after the flame in the fire can quickly rotate one to three times, and then quickly exit, and immediately inverted in the operation part of the fire can. 3. Cotton method: take the appropriate size of cotton dipped in 95% alcohol, placed in the lower third of the inner side of the fire cans, and then use the fire to ignite it, and then quickly buckle the fire cans in the operating parts. 4. Drops of alcohol method: take white wine or the concentration of 95% alcohol, in the fire cans into one to three drops, along the inner wall of the fire cans, shake well, ignite it with fire, and quickly buckle the fire cans in the operation part. In addition to the flash fire method, there are open flames inside the fire pot, which may burn the skin, so if you have a need for cupping, it is recommended that you seek medical attention in a timely manner, operated by a professional physician, or under his guidance, so as to avoid burns to the skin.