Shingles is actually a reactivation of the chickenpox virus triggering a painful rash. The virus has an effect on the nerve fibers and skin producing a painful, itching, burning rash. The realm with the rash is most frequently above a single facet from the chest, abdomen or back. Lichen planus https://www.theorthopaedicandpainpractice.com/treatment-options-for-lower-back-and-knee-pain/