2. Practice: When using, grab a handful of Zanthoxylum bungeanum and add appropriate amount of water to fry until cooked, and pour it into a basin to smoke the feet first. When the water temperature drops to the usable level, pour a proper amount of mugwort leaf water to soak your feet. In this process, pepper water can be continuously added. The ankle is submerged by water, and it is appropriate to soak for half an hour. It is advisable to sweat slightly all over.