Cordyceps is a flat tonic for the lungs and kidneys, its medicinal properties are mainly tonic, basically there is nothing to clear the lungs, so generally speaking it is not used for the treatment of pulmonary nodules, most of them are used for the treatment of long-term chronic lung disease caused by the loss of lungs and kidneys. Pulmonary nodules are a kind of proliferative disorder, different from lung tissue, alveoli, granuloma-like structures with respiratory function, or fibrous lesions that remain due to incomplete recovery from inflammation, and these lesions can be observed for further development, further infection or malignancy. Generally speaking, if they do not affect lung function, most of them are not treated, but if they are treated, they are also used in Chinese medicine to cleanse the lungs as much as possible of the surrounding inflammatory components in order to reduce the damage of the nodules to lung function, but in this case they are generally not tonic, so generally wormwood is not used in the treatment of lung nodules.