Bailing capsule is a kind of Chinese patent medicine with the effect of tonifying kidney, lung and benefiting essence. The formula of Chinese medicine mainly contains fermented Cordyceps mushroom powder. This drug can be used for cough, asthma, hemoptysis, lumbago and back pain caused by deficiency of both lungs and kidneys. It can be used clinically as an adjuvant treatment for chronic bronchitis, acute bronchitis and chronic renal insufficiency. For the use of this drug should be noted, do not eat spicy, stimulating, cold, greasy food, and the side effects are relatively small, but for this drug has an allergic reaction to the patient is prohibited.