Re: Herpes zoster infection
"Treatment aims to ... reduce the risk of post-herpetic neuralgia."
However, the most recent Cochrane review of this topic concluded (in 2014) that there was "high quality evidence that oral aciclovir does not reduce the incidence of postherpetic neuralgia significantly. In addition, there is insufficient evidence to determine the effect of other antiviral treatments". (https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD006866.pub3/...)
This is referenced in the most recent NICE guideline for shingles (May 2018) (https://cks.nice.org.uk/shingles#!scenariobasis:2).
Competing interests: No competing interests