Usually, the use of pepper, mugwort, ginger foot soak 1-3 weeks can get obvious results, but due to different personal constitution, then the specific effect time is not the same. Ginger, pepper, mugwort are warm drugs, the combination of the three foot soak can have a warm meridian to disperse cold, warming the role of stopping diarrhea, but also to promote blood circulation in the lower extremities, reduce edema. It can also promote blood circulation in the lower limbs and reduce edema. It also has a therapeutic effect on cold pain caused by cold invading the joints of the lower limbs and dysmenorrhea caused by deficiency cold in the lower jiao. In addition, the use of the above three drugs foot soak also has the effect of inhibiting and killing fungus, thus can treat foot odor. However, patients need to pay attention to the foot soak, pepper and mugwort is more irritating to the skin, after the foot soak, if the skin reddening, itching, pain is obvious, etc., should immediately stop using, if the symptoms are delayed to get effective relief, you need to timely go to the hospital Chinese medicine department of internal medicine to consult a doctor, and give symptomatic treatment.