The full name of Cordyceps should be Cordyceps sinensis. After brain tumor surgery, if there are symptoms such as lumbar and knee soreness (the feeling of lumbar and knee soreness and weakness) caused by lung and kidney deficiency, you can take Cordyceps under the guidance of a professional doctor. Cordyceps is sweet in taste and warm in nature, and is attributed to the kidney and lung meridians. It is a traditional Chinese medicine with the effects of tonifying the lung and kidney, stopping bleeding and resolving phlegm. Clinically, it can be used to treat impotence, spermatorrhea, lumbar and knee pain, prolonged cough, wheezing, coughing up blood and other diseases caused by deficiency of the lungs and kidneys. People who are allergic to Cordyceps Sinensis are prohibited from taking it, and people with allergies need to be careful when taking Cordyceps Sinensis. At present, there is no clear adverse drug reaction after taking Cordyceps sinensis. After brain tumor surgery, if you have any of the above symptoms caused by lung and kidney deficiency, you can take Cordyceps Sinensis under the guidance of a professional Chinese medicine practitioner. If you don’t see any relief after taking Cordyceps Sinensis, you need to consult a doctor in time so as to avoid any delay in your condition.