The original Yin Qiao San was developed by Wu Ju Tong, and recorded in Wen Bing Tiao Bian, “Warm Diseases Systemic Differences” (1798 C.E.). Not a super catchy title, however, this tome represented advances in the understanding and treatment of febrile ( feverish ) diseases. Before Wen Bing or “Warm Diseases”, there was Shanghan Lun “Cold Damage Diseases” (200 C.E.) written by Zhang Zhongjing.