The efficacy of foot soaking in mugwort leaves and peppercorns is to warm the meridians and dissipate cold (warming the meridians of the human body and removing the cold in the body), kill insects and relieve itching, and remove dampness and relieve pain. Both of them are pungent and warm, and can be used together to disperse cold, prevent colds, relieve menstrual cramps, and regulate qi and blood. The main effect of internal use of mugwort leaves is to warm the menstruation to stop bleeding (warm the human body meridians, stop bleeding in the body), dispersal of cold menstruation, fetal safety. Taste hard, warm, can be made into moxa sticks, moxa cones and so on. Mugwort foot soak has the effect of warming yang and dispersing cold (warming yang qi and dispersing cold), and can be used to alleviate cold symptoms. Pepper can be taken internally to warm the middle and relieve pain (relieve pain by warming the spleen and stomach), kill insects and relieve itching. It is pungent in flavor and warm in nature. Decoction and external washing can treat eczema itching. Peppercorn foot soak can warm the middle and disperse the cold (by warming the spleen and stomach medicine to dispel the cold), treatment of itchy skin, prevention of foot fungus and so on. The temperature of foot soaking should not be too high, to the extent of slight sweat, not excessive sweat, in order to avoid dizziness and other uncomfortable symptoms. But the role of foot soaking is limited, if you need both to treat the disease, it is recommended to follow the doctor’s instructions for medication.