Walnut shell foot soak has no special benefits, only to relieve fatigue, promote blood circulation in the feet, improve the phenomenon of cold feet. Walnut shells usually refers to the walnut family plant walnut shells, this shell is not a drug, and does not have a special effect and role, so soak your feet with walnut shells on the body and no special benefits. However, in the process of foot soaking, through the feet contact with hot water, you can let the local temperature rise, to relieve the symptoms of cold feet, in addition to accelerate the blood circulation of the feet, to relieve the body fatigue. The part of walnut used as a medicinal herb is its dried and matured seeds, and the herb is called walnut kernel, which has the effects of tonifying the kidney, moistening the intestines and warming the lungs, and can be used to improve the deficiency of kidney yang (lack of yang qi in the kidney), impotence and spermatorrhea, intestinal dryness and constipation, and coldness and wheezing and coughing. Yin deficiency and fire (deficiency of Yin essence in the body, hyperactive fire), loose stools, phlegm heat coughing and asthma is prohibited. Although walnuts have medicinal value, but not all parts are available, patients should not be used indiscriminately, need to be guided by a doctor.