Pain Related to "Shingles" Revisited

The following are some useful references on pain related to Herpes Zoster (Shingles) and Postherpetic Neuralgia:

1) Does sympathetic ganglionic block prevent postherpetic neuralgia?

2) Acute Herpes Zoster and Postherpetic Neuralgia

3) Primary care treatment for postherpetic neuralgia in acute herpes zoster

4) A Review Of Postherpetic Neuralgia