Most often, no tests are needed to diagnose this condition. Your doctor may order x-rays or blood tests to check for illnesses that may be similar to complex regional pain syndrome. Several different medicines are used to treat the pain of complex regional pain syndrome. Medicines that block certain nerves may be prescribed. Sometimes steroids help.
Some medicines used for depression and seizures also help chronic pain.
Narcotics and other pain medicines may not control the pain of complex regional pain syndrome. No single drug or combination of drugs is known to give long-lasting relief to patients with this problem. Your doctor may suggest a sympathetic block. If the injection works, it may be repeated. Physical therapy and psychologic counseling are also helpful.