Complex regional pain syndrome (CRPS) is a very real condition, though how and why it occurs remains unknown to scientists. It is a chronic (long-term) problem that may not go away. In about half the patients, the symptoms go away and then come back again later.
Chronic pain is a common feature with CRPS. Anyone who has pain long enough can experience emotional and psychologic distress. Behavioral therapy or psychologic counseling is often advised. There are other treatments that may help, too. These include medications, physical rehab, support groups, hypnosis, and biofeedback.
Encourage your sister to talk with her doctor about all treatment types available. Counseling may be a good place to start.
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