Objective: This study aimed to report the improvement of patients with hyperhidrosis treated using Gyejigajagyak-tang based on the Shanghanlun provisions.

Methods: Two patients were diagnosed with Greater-yin disease based on the 279th provision of Shanghanlun, and Gyejigajagyak-tang was used to treat hyperhidrosis. The result was evaluated using the Hyperhidrosis Disease Severity Scale and Visual Analogue Scale .

Results: An analysis of results of the two cases showed that the patients' conditions had improved. The amount of sweat produced was decreased in both cases.

Conclusions: These results suggest that the medicines defined in Shanghanlun are clinically effective when Shanghanlun is properly interpreted, considering the origins of the Chinese characters in the text, and the Shanghanlun disease pattern identification diagnostic system is applied.

Keywords: Gyejigajagyak-tang, Shanghanlun, Hyperhydrosis