Too many people know the pain of having shingles. Shingles, or Zoster, occurs when a Herpes virus, the same one that caused chickenpox in childhood, reemerges from dormancy in a spinal nerve. Symptoms include nerve pain and tingling followed by an eruption of a blistery red rash over the distribution following that nerve.
Typically, the rash of shingles lasts up to a couple of weeks, but for some p…