This paper introduced Professor Huang Huang’s clinical experience in the application of Fangfeng Tongsheng Powder through three medical cases. It is considered that Fangfeng Tongsheng Powder is suitable for the syndrome of external exuberance of pathogenic wind with internal pathogenic heat, characterized by simultaneous excess in the exterior and interior, and clinically Professor Huang Huang emphasizes the combination of constitution identification, syndrome differentiation and disease differentiation, and pays attention to the important clinical value of correspondence between prescription and syndrome and selection of prescription based on patient’s constitution.