It is necessary to notice that back muscle pain in shingles is often unilateral, indicating it has an effect on only one side of the body. This is due to the virus reactivates in a selected nerve root, which corresponds to a certain dermatome (an area of pores and skin https://www.theorthopaedicandpainpractice.com/chronic-neck-and-shoulder-pain-relief-strategies-to-reduce-discomfort-2/