The Chinese Pharmacopoeia records that Xianmao has the effect of tonifying the kidney and yang, dispelling cold and dampness, and strengthening the tendons and bones, and can be used to treat impotence and weakness of the tendons and bones, cold pain in the lumbar and knee, impotence and coldness of the spermatozoa, and coldness and diarrhea of the yang deficiency, and so on. Note that the drug is toxic, if you need to use must be under the guidance of a physician. Xianmao is the dried rhizome of the plant Xianmao in the family of Staphylococcaceae, which is pungent and hot in nature; it is poisonous. It belongs to the kidney, liver, spleen meridian. 2012 People’s Health Publishing House published “Traditional Chinese Medicine” records, if you take an overdose, there can be a cold sweat, numbness of the limbs, irritability and other toxic reactions, and the nature of the drug is hot and dry, there is a harm to the disadvantages of the yin, so the yin is weak and hot (the body of the yin deficiency, there is a hyperactive virtual fire) of patients should not take this drug. If you need to take the drug patients, please be sure to strictly comply with the instructions of a professional Chinese medicine practitioner under the guidance of the medication, do not self-medication.