Shingles can be a reactivation in the chickenpox virus creating a painful rash. The virus affects the nerve fibers and pores and skin leading to a painful, itching, burning rash. The area of the rash is most frequently above 1 side of the upper body, abdomen or back. Interior shingles https://www.theorthopaedicandpainpractice.com/treatment-options-for-lower-back-and-knee-pain/