Nowadays, many people add a little foot bath powder when soaking their feet. Foot is one of the intersections of human meridians. Among the 12 meridians of human body, there are three Yang meridians ending in the foot and three Yin meridians starting from the foot, and there are more than 60 meridian points distributed in the foot. Stimulating these acupoints by soaking in traditional Chinese medicine can regulate meridians, dredge qi and blood, and adjust the function of viscera, thus playing a role in preventing and treating diseases.