Benoldi D, Mirizzi S, Zucchi A, Allegra F
Department of Dermatology, University of Parma, Italy.
Int J Dermatol. 1991 Apr;30(4):288-90. doi: 10.1111/j.1365-4362.1991.tb04642.x.
The effects of prednisone, oral acyclovir, and radiotherapy were compared with placebo in the prevention of post-herpetic neuralgia. No treatment used was able to prevent, with statistical significance, post-herpetic neuralgia, although prednisone and acyclovir showed some pain reduction in the acute phase. Radiotherapy was of no value in either the acute or post-herpetic phase.