Introduction
Complex regional pain syndrome (CRPS) is a chronic pain condition that is debilitating and dramatically decreases quality of life. CRPS is characterized by a constellation of sensory, motor, and autonomic dysfunction.1 CRPS differs from other chronic pain conditions; neuropathic or generalized non-specific pain conditions; in that pain is associated with obvious and distinct alterations in sensory processing, sympathetic nervous involvement, and motor dysfunction. CRPS patients commonly present with allodynia whereby non-painful stimuli evoke a painful sensation. The worldwide incidence of CRPS is 26.2 per 100,000 people per year2 and is 3 to 4 times more prevalent in females.2 Options for medical management of CRPS include medications such as opioids, anticonvulsants, antidepressants, and procedures…