A. A. A. Complex regional pain syndrome (CRPS), also called reflex sympathetic dystrophy syndrome, is a chronic pain condition in which high levels of nerve impulses are sent to an affected site. Experts believe that CRPS occurs as a result of dysfunction in the central or peripheral nervous systems.
Symptoms of Shingles on scalp. Nerve Pain. The first symptom of shingles outbreak is pain occurring along the path of the nerve in which varicella-zoster virus has become reactivated. The pain varies in intensity between individuals from mild to very intense.
Symptoms of shingles. Shingles symptoms appear in stages. Initial signs of infection are usually burning, stabbing, or tingling pain; skin sensitivity; or itching across a band of skin, generally on one side of the body. Some people have symptoms of a viral infection, like headache, fever, chills, fatigue, or nausea. A couple days to two weeks later, a red rash of round pocks erupts on the skinâs surface where the pain and itching occurred. Soon after, those dots become fluid-filled blisters that ooze.