Editorial: PDF Onlylijima Kazuhiko; Shimoyama, Naohito; Shimoyama, Megumi; Yamamoto, Tatsuo; Shimizu, Toshiyuki; Mizuguchi, TadanobuThe Clinical Journal of Pain: September 1989 - p 271-274 Buy Abstract Abstract: In order to investigate the efficacy of repeated irradiation of low-power helium-neon laser in pain relief, we irradiated 36 outpatients suffering from postherpetic neuralgia. Each patient underwent 20 trials of irradiation on several points around the painful area at a frequency of 2 or 3 times a week. The efficacy of the laser at the end of 20 trials was noticed on 88.91, and the degree of pain relief was 55.3%, which correlated with the number of trials. These results suggest that the irradiation of He-Ne laser is an effective and safe treatment for postherpetic neuralgia. © Lippincott-Raven Publishers.