The efficacy of the Chinese herb Fa Xian Xia is to dry dampness and dissolve phlegm. It can be used clinically to treat some related diseases through the application of Fa Xian Xia. In particular, respiratory tract diseases, such as cough, phlegm and wheezing that occur in patients can be treated. It can also be used externally to treat dizziness, rotating vision and headache caused by phlegm. In clinical practice, Fargesia is also very effective for dry throat. In the process of application, Fargesia also has auxiliary therapeutic effects on the digestive system. For example, it is ideal for treating chronic gastritis, for warming the spleen and stomach, for treating symptoms of stomach cold, and for treating constipation and diarrhea. It is also suitable for children and is effective in treating respiratory tract infections, especially pneumonia, and does not cause poisoning.