A Probe into Dysentery and Diarrhea of Polyporus Decoction Symptom of Shaoyin Diseases in Treatise on Cold-Damaged Diseases

Shaoyin pyretic generation syndrome in No. 319 item of Treatise on Cold-Damaged Diseases is actually changed from Shaoyin cold transformation syndrome. Though Polyporus Decoction syndrome of Shaoyin Diseases is mainly manifested as yin asthenia generating intrinsic heat,the fact that hydroretention with asthenic yang is its base should not be ignored,and syndrome of dysentery and diarrhea is the classic type of body fluid disorder. Polyporus Decoction syndrome belongs to Shaoyin pyretic generation syndrome due to yin asthenia generating intrinsic heat,but its essence is due to deficiency of both yin and yang; Its yang asthenia is mainly manifested as dysentery and diarrhea resulting from excessive body fluid. Therefore,this kind of disease should be excreting dampness based on clearing away heat to supplement yin. That is just the reason why Polyporus Decoction is chosen in clinical practice.