translated by Dr. Lim Siow Jin@all rights reserved.
103. Exo-yang illness, wrongly purged 2 to 3 time over ten days, the illness advance into intero-yang, even after another 4 to 5 days if the Chaihu syndrome persist, we can try to treat with Xiao Chaihu tang. If vomit non stop, upper abdomen is cramp and painful, slightly restless, the illness has advanced into endo-yang and now both intero and endo yang are ill. Purge with Da Chaihu tang will cure the illness.
Note: For exo-yang illness, since it is exogenous, the internal of the body is healthy and not suffering from any major illness. However, some herbalist saw that the patient is suffering from high fever and think can remove the heat by purging, it will weaken the internal of the body and the illness will attack inside. The illness then may complicate to become intero yang and endo yang illness or the combination of both. If the Chaihu syndrome of alternating of fever and chill, fullness of chest, quiet and no appetite, nausea and tend to vomit, any of these do exist, then we apply the Xiao Chaihu tang. Xiao mean minor or small. However, if at the same time the congestion of stool and endo heat also present, we can not purge with pure purging medicine, but modified the Xioa Chaihu tang to Da Chaihutang, Da here mean major or big, to purge the stool and heat from the body.
Da Chaihu tang ----------------- Chaihu 24g, Huangqin 9g, Shaoyao 9g, Banxia 9g, Shengjiang 15g, Zhishi 9g, Dahuang 6g. Add to 800 ml water, boils to 400ml. remove the boiled herbs and continue to boil to 200 ml. Serve warm in one taking.