ABSTRACT
The wind, phlegm, and blood stasis are important pathogenic factors of cough variant asthma in children, and they are also the pathological products in the occurrence and development of this disease. They have typical pathogenic characteristics. The main pathogenesis characteristics of cough caused by wind, phlegm and blood stasis are as follows that external wind attacks the lungs and induces internal wind, phlegm and dampness accumulates in the lungs, and the lungs fail to declare and descend, and blood stasis obstructs the collaterals and stagnation of Qi. The wind, phlegm, and blood stasis have their own pathogenic characteristics, and their cough-causing also have their own pathogenic characteristics and clinical characteristics. Based on the characteristics of wind, phlegm, and blood stasis, the application of medicine based on the differentiation of symptoms and signs can effectively prevent and treat this disease, and provide theoretical basis and treatment ideas for the treatment of cough variant asthma in children with Chinese medicine.