1. Objectives The purpose of these 2 case studies is to evaluate the effects of Gihwangbeakho-tang which is based on the Sasang Constitutional Medicine for the Herpes zoster. 2. Methods We used Visual analogue sign(VAS) and pictures of the affected part for the assessment. 3. Results After two patients were treated with Gihwangbeakho-tang, the vesicles were cleared and the pain was decreased. 4. Conclusions These 2 case studies show an efficient result of using Gihwangbeakho-tang in the treatment of Herpes zoster.