Radix Rehmanniae, together with Cordyceps sinensis, has the effects of refreshing, stimulating appetite, nourishing liver and kidney deficiency and strengthening waist and knees. Can be fried, boiled, soup, pickled, vinegar soaked, sugar soaked, pickled, pickled. Ginseng contains more than 20 kinds of trace elements, 18 kinds of amino acids, phenols, sugars and other nutrients needed by human body. It is best to soak in boiling water, so that it is easy to dissolve the active ingredients. Coupled with medlar, it can enhance the function of nourishing liver and kidney.