Cordyceps belongs to a kind of traditional Chinese medicine, when used clinically, the dosage can be adjusted appropriately according to the condition of the doctor’s instructions, generally there is no definite provision for the dosage of Cordyceps a day, but the Pharmacopoeia records that the dosage should be 3 to 9g. Cordyceps belongs to the category of tonic drugs in traditional Chinese medicine, which has the effect of tonifying the kidney and benefiting the lungs, and it is good at treating the related manifestations caused by kidney deficiency and essence loss, such as impotence and spermatorrhea, lumbar and knee pain, slow reaction, menstrual disorders, and fatigue, etc. In addition, it can also be used as a tonic for the kidney and lungs. In addition, Cordyceps can also stop bleeding and resolve phlegm, so it can also be used to treat symptoms such as coughing, coughing up phlegm, blood in phlegm and wheezing. The adverse reactions of Cordyceps Sinensis are not clear. It should not be used if there are superficial evils. Patients are advised to seek prompt medical attention if they are unwell, and should not use the medicine on their own to avoid delaying their condition.