Complex regional pain syndrome type I (CRPS-I) is a known complication after surgery or trauma to the upper extremity and is difficult to treat. A simple and easily tolerated method of treatment that includes intravenous regional anaesthetic block with lidocaine and methyloprednisolone is presented. One hundred and sixty-eight patients with CRPS-I of the upper extremity were treated in a 5-year period. At the end of treatment 88% of the patients reported minimal or no pain. After a mean follow-up of 5 years (range 28 months to 7 years) complete absence of pain was reported by 92% of patients. The symptoms of the acute phase of the syndrome were reversed. Early recognition and prompt initiation of treatment is very important for the course o...