Shingles can be a reactivation of the chickenpox virus leading to a painful rash. The virus influences the nerve fibers and skin triggering a painful, itching, burning rash. The realm with the rash is most frequently around a person side from the chest, abdomen or back. Acute or reactive phase: https://www.theorthopaedicandpainpractice.com/treatment-options-for-lower-back-and-knee-pain/