Objective : The purpose of this study was to report the improvement in a patient with edema treated by herb medication based on Shanghanlun provisions.

Methods : According to ‘A disease pattern identification diagnostic system based on

Shanghanlun provisions (DPIDS)’, a patient was diagnosed with Taeyang-byung, no.

46 provision and was administered with Mahwang-tang herbal medication for 30 days. The Numeric rating scale (NRS) was used to estimate the response.

Results : The NRS score changed from 10 to 1 and the edema disappeared by 46th provision of Mahwang-tang selected according to Shanghanlun provisions.

Conclusions : This case report suggests that the two words in the 46th provision of Shanghanlun, ‘陽氣重, 無汗’ (Yang qi heavy, Absence of sweating) indicate a close relationship between photosensitivity and absence of sweating, thereby affecting edema in this case.

KeyWords : Mahwang-tang, Edema, Shanghanlun, Disease Pattern Identification Diagnostic Systen based on Shanhanlun Provisions (DPIDS), Herbal medicine, Photosensitivity