Postherpetic neuralgia (PHN) is a painful condition which is difficult to treat, especially among the elderly. This clinical case describes the treatment of an 88-year-old patient with PHN who continued to suffer from pain for several months despite oral and transdermal pain treatment. Multiple intradermal glucose 5% (or dextrose 5%) injections allowed her to discontinue her pain medication regimen after four sessions. The improvement was sustained at the four-month follow-up after the last procedure. A fifth session was performed because of a flaring up of the pain. Long-term follow-up after 12 months showed no pain relapse at all.

Keywords: neuropathic pain, postherpetic neuralgia; glucopunctrure; dextrose 5%; glucose 5%; intradermal injection; isotonic glucose injections