Objectives : The purpose of this study is to report the effect of Korean medicine treatment on occupational allergic contact dermatitis caused by mortar. Methods : The patient treated by herbal medicine, acupuncture, pharmacopuncture and external therapy. The progress is evaluated by Numerical Rating Scale(NRS) and Dermatology Life Quality Index(DLQI). Results : NRS and DLQI score were significantly decreased as a result of Korean medicine treatment. Conclusions : Korean medicine treatment should be effective for the occupational allergic contact dermatitis caused by mortar. More studies are needed to confirm stability of these treatment.