The treatment of diseases and syndromes of six meridians has its own treatment principles. For example, taiyang disease can be divided into "stroke", "typhoid fever" and "fever" according to syndromes. Anyone who has no sweat and tight pulse belongs to exterior excess. Mahuang decoction can be used to sweat, dredge meridians and drive away cold evil. If the pulse is slow and there is spontaneous sweating, which belongs to exterior deficiency, Guizhi decoction is used to relieve muscle sweating. Everything else is based on certificates. Belonging to Yangming disease, it mainly refers to the accumulation of excess heat or pathogenic heat in the stomach, as well as Yangming meridian syndrome and Yangming fu-organs syndrome. The former is hot, sweating spontaneously, and does not hate cold and heat. The main treatment is Baihu decoction to clear away heat and protect body fluid. For the latter, the symptoms are burning, high fever, or hot flashes, sweating of hands and feet, pain around umbilicus, constipation, and Huang Chi in urine, so the treatment is mainly based on Sanchengqi decoction. The pathogen of shaoyang disease is between half exterior and half interior, so Da Chai Hu Tang and Xiao Chai Hu Tang are the main prescriptions.