本文以研究李東垣所著蘭室秘藏對五官科疾病的用藥思想爲目的。依據該書的記載，李氏治五官科疾病，以眼科和齒科的疾病最多，其次爲鼻病，耳病及咽喉疾病很少。李氏治眼科疾病，外障多爲急慢性結膜炎及角膜炎病例，治療急性眼病多以清熱解毒藥和瀉火燥溼藥爲主，並且常與辛溫解表藥合並使用；慢性眼病則多加上補養氣血藥以助其虛，其與脾虛陰火有關者則治以補氣升提瀉陰火爲主。內障多爲青光眼與白內障病例，除急性充血性青光眼治以清熱瀉火、涼血活血藥爲主外，東垣治內障眼病，多以補氣升提瀉陰火及滋腎陰藥爲主。東坦治鼻病，主要治鼻不聞香臭及鼻壅塞，前者爲萎縮性鼻炎，以補氣健脾，升提瀉陰火藥爲主；後者爲血管運動性鼻炎，以溫肺，升提通竅藥爲主。其治牙痛，不論內治或外治，大多以清胃散爲基本方調治。

The present study was to research medication thought of five organ diseases in the book of Lan-Shi-Mi-Cang by Li-Dong-Yuan at Jin-Yuan dynasty in China. Among of five organ diseases, the most commonly cases were eye and dental diseases by Li's treatment in clinic, then nasal disease, and ear and pharynx-throat diseases were seldom.The commonly diseases were acute or chronic conjunctivitis and keratitis by Li's treated external ocular disease. The principles of acute eye diseases medication were used hear-clearing and resolve toxin herbs, as well as drain fire and dry dampness herbs, and usually combined with warm-acrid exterior-resolving medicinal. For chronic eye diseases, when patient's present vacuity symptoms, the medication of supplementing and nourishing qi and blood herbs were given. If the eye diseases were relation with spleen vacuity and yin fire, it should be administered boosting qi, upraise, and drain yin fire herbs. The commonly cases of internal ocular disease were glaucoma and cataract were treated by Li's. The formulas composition with supplementing qi, upraise, and drain yin fire herbs, as well as enriching kidney yin medicinal. But acute congestive glaucoma medications were used heat-clearing fire-draining and blood-cooling blood-quickening herbs by Li's. Nasal disease treated by Li's, the formula of nasal obstruction (vasomotor rhinitis) was with warm lung, upraise, and free the orifices medicinal, whereas atrophic rhinitis(nose lose aromatic and bad smell) was administered the supplementing qi and fortify the spleen herbs, as well as upraise and drain yin fire medicinal. Li's treated dental pain, any way internal or external treatment usually took the basic formulas with Stomach-Clearing Powder.