What Causes The Outbreak Of Shingles With Fevered Skin And Blisters?

I was given via shots into the left side of my spine into the main muscle due to it hurting so bad. That was a week after getting shots into my spine due to hurting - I am awaiting spinal surgery Aug 23, if not sooner the doctor said. Cause I am scheduled for surgery on my lower spine Mar.23 if not sooner. Dr. wants we in asap. I broke out in shingle like splotches with fevered skin and blisters - that hurt and are itchy. I ve had shingles before and got the shot yrs. later which was 3 yrs. ago. I can t get prescriptions becase my Ins. for drug won t start until Mar. 1, 2015 Help. Sharon Mazzarella