In the long process of TCM clinical practice for skin diseases,Professor Yang Zhi-bo gradually formed the TCM treatment system,which focused on the evolution of pathogenesis,internal and external treatment,combined the diseases and syndromes,distinguished both principal and secondary aspects of a disease promptly or slowly,had been good at preventive treatment of disease and so on.In clinical practice,he was attentive of the principles of prescription and the flexibility of use in the treatment system;also,identified etiological of the pathogenesis and combined prevention with control which wa...