Chronic nephritis belongs to the category of “edema” in Chinese medicine, Cordyceps sinensis can be used in the treatment of edema in patients with kidney yang weakening and micro-type edema, but the effect of single medicine is not good, it should be used by a professional physician to diagnose the case and formulate a prescription and medicines, and it is often combined with the use of Zhenwu Tang. Cordyceps is warm in nature, sweet in taste, belongs to the lung, kidney meridian, has the effect of stopping bleeding and resolving phlegm, tonifying the kidney and benefiting the lungs, it can be used for the treatment of lumbar and knee pain, impotence and spermatorrhea, asthma and coughing of the deficiency of the lungs and kidneys, and coughing of the lungs and kidneys, and other diseases. The adverse reactions and contraindications of this product are not clear. Kidney yang weakening micro-type edema symptoms see floating body swelling, below the waist is very, press the depression, lumbar soreness and cold pain, cold limbs (cold limbs, even cold to the elbows and knees), pale, palpitation and chest tightness, wheezing (wheezing shortness of breath) difficult to lie down, etc., the formula used Zhenwu Tang, if coughing and wheezing face floats, sweating, can not lie down, can be added with ginseng, toadstool, schizandra, or Cordyceps Sinensis and so on. After the discomfort should be timely medical treatment, under the guidance of the physician’s diagnosis and selection of medication, not self-medication, so as not to delay the condition.