Medical literature defines Complex Regional Pain Syndrome, or Reflex Sympathetic Dystrophy, as a progressive pain syndrome, characterized by severe pain that can be burning, electrical like or shooting. Pain is centered around the site of injury. Other symptoms patients with CRPS/RSD experience can include muscle spasms or atrophy, stiff joints, a decrease in mobility of the affected region. There can be skin changes like color changes, increased sweating, temperature changes ( the area feels hot or cold) or swelling. Hair and