| Influenza is a kind of acute virus respiratoy tract contagious disease. Influenza virus belongs to orthomyxious viruses, which comprises A, B, and C types. Influenza A has 13 subtypes (H1-H13), according to the difference of Heamagglutin (H), among which H1H3 are very closely related to human influenza. Influenza A viruse, which exists in the nature widely, can affect pourty, pigs, horses or any other animals, besides humanbeing. Millions of people were killed by influenza during the epidemic in the 20th century. Large manpower and material resources have been thrown into the scientific study in attempt to find out effective ways to cure and prevent influenza in every country.In traditional Chinese medicine, the syndrome of influenza is just like the initial stage of superficies-sydrome caused by exogenous evils. The syndrome is included in wind-heat syndrome of seasonal febrile diseases, taiyang superficies-sydrome and shaoyang syndrome in exogenous febrile disease. Special treatment and prevention according to syndrome differentiation has been well proved in the long history of clinical practice and the effect is very good. But it is not well systematized in the study of anti-virus mechanism of herbs. Most reseachers focus on selection of effective medicine to kill virus. But experiments are limited on mechanism of herb reaction and the essence of herbs prescription especially connected with the theory of TCM.There are three basic methods in diaphoretic therapy: acrid and cool-natured drugs, acrid and hot-natured drugs, moisture-eliminating drugs in dispelling superficial evils. These three kinds of principles are used widely in the clinical practice and really get satisfactory effect. Now days the morden medical experiments about these three kinds of prescription —Guima ge ban tang,Yinqiao san, Xinjia xiangru ying — showed both the recipes and single herbs have many aspects of functions, such as sweating ,anti virus , reducing the fever and relieving the pain et al.The study aims at reviewing historical and present documents about the pathogenic... |