Complex Regional Pain Syndrome also known as Reflex Sympathetic Dystrophy is a progressive pain syndrome that most often affects one of the limbs (arms, hands, legs or feet) after trauma or injury to the limb. Doctors believe that the syndrome is the result of damage or malfunction of the peripheral and central nervous systems. The key symptom is prolonged pain that often is described as burning, electrical, shooting or “pins and needles” sensation…