(1) promotes blood circulation. The foot has been considered as the second heart of the human body since ancient times. According to the health theory, the feet are farthest from the human heart and bear the heaviest burden. So this place is most likely to cause poor blood circulation. According to medical records, "a man with feet is still like a tree with roots. The roots are exhausted first, and the old feet are old first." Especially for people who often feel cold hands and feet, soaking feet with hot water is an excellent method.

(2) Stimulate acupoints, reflex zones and meridians of the foot. According to medical theory, there are reflex zones, acupoints and meridians on the feet of various organs and organs of the human body. Many people have had pedicures. When the masseur presses our feet, it will feel pain and soreness. This situation can basically explain that there is something wrong with our corresponding reflection area. Therefore, when we finish the foot massage, we will feel relaxed all over. At the same time, there are six main meridians on people's feet, including the end points of three yang meridians (bladder meridian, stomach meridian and gallbladder meridian) and the beginning points of three yin meridians (spleen meridian, liver meridian and kidney meridian), all of which are on the feet. So soaking feet with hot water is equivalent to stimulating these six meridians.

(3) It has a good auxiliary effect on the treatment of various diseases. People often say that "the rich take tonic and the poor soak their feet", which shows the great effect of Chinese medicine soaking their feet. Especially in modern society, the extensive use of air conditioners and people's general love of cold food make their bodies cold and wet. Soaking feet with traditional Chinese medicine can accelerate the elimination of cold in the body.