From the perspective of Chinese medicine, Lung Ning Granules are mainly used for coughs caused by exuberant lung heat. Lung heat is caused by a decrease in the immunity of the body and the invasion of heat from outside, which leads to excessive lung heat and dryness in the lungs, resulting in coughing and coughing up pus and sputum. The phlegm is sticky and can be accompanied by dry mouth, chest tightness and fear of heat, such as chronic wheezing bronchitis, acute bronchitis, acute upper respiratory tract infection and lung infection. Lung Ning Granules, a proprietary Chinese medicine, mainly contains the extracts of Returning Soul Herb, a formula with the effect of clearing heat and dispelling phlegm, calming cough and asthma, which can be used for coughs caused by the above-mentioned diseases.