"So, if you have it rising high on the spinal cord/brain it can produce lesions on the face; lower, down the chest, stomache etc. Is this your understanding also?"
Yes, this is my understanding of how it can work.
Taking Adaptogens is a good reminder..... 2 of my favorite ones are Suma & Schizandra berries.
I think, I did another post on Shingles last year for a friend of mine. I'll see if I can find it (if I did it).