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Yoshimasu Todo[吉益東洞]’s medical theory extracted from Yakjing(藥徵)Ⅲ - Yoshimasu Todo’s view of medicines - Dept. of Oriental Medical Classics, college of Oriental Medicine, Kyung-Hee University. Lee Jeong-Hwan․Baik You-Sang․Jeong Chang-Hyun This study is on Yoshimasu Todo’s thoughts of a real doctor and medicine. Conclusions are as below. A disease-doctor[疾醫] is a doctor treating diseases by poisonous medicines. His role is different from food-doctor[食醫] who recuperates vital energy by food. Unlike food-doctor, a disease-doctor only detoxicates poisons of diseases by using poisonous medicines. Disease-doctor shall not take credit upon himself for the service of Heaven’s power. This is Yoshimasu Todo's view of a real doctor. Medicine is not an imagination, but a reality. It is the recognition of knowing what can be known and seeing what can be seen. The truth of medicine is in ancient words(古語), ancient teachings[古訓] and ancient ways[古法]. To study medicine is not recklessly believing and following the contents of ancient medical texts-Sanghanlon(傷寒論),Geumgwe-yolyag(金匱要略),Somun(素問),Yeongchu(靈樞). It is to follow the ancient ways written and left in ancient books and not to follow wrong ways fabricated by after ages. The theories of eum-yang-ohaeng(陰陽五行) and o-un-yuggi(五運六氣) are useless to medicine because these are groudless ones. This is Yoshimasu Todo's view of medicine.

Yoshimasu Todo[吉益東洞], Yakjing(藥徵), poison(毒)