Professor ZHANG Deying innovatively put forward the theory of'phlegm evidence',developed the theory of the five elements,and applied the theory of the five elements as a platform for clinical treatment.ZHANG Deying took phlegm as the entry point and the five elements as the guidance,pointed out that the main pathological mechanism of laryngeal mute is the production of phlegm by the spleen,phlegm induces wood hyperactivity,and phlegm-fire closes the gold.In view of the pathological mechanism,he put forward the methods of generating gold and eliminating the earth,draining the fire to pacify the liver,and opening up the closure of the gold from the relationship between birth and death of the five elements;he classified the medicines according to the attributes of the five elements,and chose the appropriate medicines to treat the different treatments.The author summarises professor ZHANG Deying's clinical experience in treating mute laryngeal outpatient from the perspective of phlegm evidence based on the five elements,for the benefit of his colleagues.
Five element diagnosisSpleen solidPhlegmOutpatient larynxLoss of voice