Reflex Sympathetic Dystrophy Syndrome (also known as complex regional pain syndrome, causalgia, shoulder-hand syndrome and post-traumatic spreading neuralgia) is a chronic, rare and painful condition that usually affects the arm or leg. However, it can affect virtually any part of the body.
Most often, the disease affects people older than age 50, but it can occur at any age. Women are more likely to be affected than men are.
The nature of reflex sympathetic dystrophy syndrome is puzzling, and the cause is unknown at the time of writing. The condition may result from a disturbance in the sympathetic nervous system, the part of the nervous system that controls blood flow and your sweat glands. The disease commonly follows an acute problem, such as an injury to an arm or a leg, or an illness such as a heart attack. But it also may stem from a minor injury you may not even recall.
Symptoms include intense burning or aching pain along with swelling, abnormal sweating and hypersensitivity of the area.
If the above treatments aren't effective, a doctor may recommend:
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