The Treatise on Warm and Heat Pathogens is a foundational work on the science of epidemic febrile diseases. Ye Tianshi not only has outstanding original idea for warm-heat syndrome and also has penetrating views for damp-heat syndrome and its treatment. He held that combination of internal and external dampness played a decisive role in attacking of warm-heat diseases. Based on analysis. exopathic cause and syndromes of epidemic febrile diseases of damp-heat types are divided into both warm-heat syndrome with dampness and damp-heat syndrome

and indicates that damp-heat syndrome mainly locates in the spleen

stomach and tri-Jiao. and it has two turns. i. e. injuring Yin and injuring Yang in development

pays attention to inspection of the tongue and rash. and based on which the therapeutic method is determined. In treatment

it is emphasized to remove damp-heat

protruding the principle "treating dampness as root"

and advocating that dampness should be removed from regulating tri-Jiao

and dividing the uper-Jiao and the lower-Jioa

particularly pay attention to using diuresis for removing dampness; at the same time. for removing dampness

regulating Qi should be strengthened. When Qi freely flows

dampness is easily removed. In addition. Yang-Qi should be protected according to constitution of the patient.