treat CRPS, including antidepressants , anti-inflammatories such as corticosteroids and COX-inhibitors such as piroxicam , vasodilators , GABA analogs such gabapentin and pregabalin , and alpha - or beta-adrenergic-blocking compounds. Elevation of the extremity and physical/occupational therapy are also used to treat CRPS. Injection of a local anesthetic such as lidocaine