I'm so sorry you are getting this again, I know how painful it is.
I've had Shingles 12 times. The 1st time I had them I was 43, my dr didn't think I had them bc I was 'too young' for them. When she looked at the band around my waist and up my back, she said it was Shingles. Several months later I had my 2nd bout of Shingles. My dr's partner was on when I called the office. He told me I couldn't possibly have Shingles AGAIN, ppl never get them more than once, and I was too young to have had them at all. Good to know!! Anyway, he finally agreed that I had them AGAIN.
Awhile after my 2nd bout, I read that ppl who had steroid shots were prone to getting Shingles. (I mean on top of having Chicken Pox). The wk before my 1st bout, I had gotten a steroid shot in my right shoulder for bursitis. It helped my bursitis, but it has been a pain w/ the Shingles. The pain is horrific.
I have had drs suggest steroid shots to me since that time. I refuse. When they ask why, I tell them what I read. I had one dr laugh at what I told him. Last time I went to him. I have a rheumy now who listens to me and respects my feelings and what I tell him.
I don't know if you have had a steroid shot, but there may be some other connections as to what sets this into motion.
I know I also have nerve damage. Can't wear a bra or other tight clothing.
I hope this passes quickly for you. I will keep you in my prayers.
God bless. Alice.