Herpes zoster is characterized by several groups of vesicles situateu unilaterally within the distribution of the cranial or spinal nerve coming from one posterior ganglion Biateral involvement and recurrence are rare, and zoster involves two widely separated regions at on time are even rarer. We report a case of bilateral eupes zoster. A 5-years-old female patient was presented with painful bilateral grouped vesicles on an erythematous base along the dermatome of Lt T2 and Rt T5. Tzanck smear revealed multinucleated giant cells, and histopathologic findings were consistent with herpetic infection. She was successfully treated by administration of acyclovir without any significant cornplications. (Kor J Dermatol 1994;32(6): 1119-1122)