Background:The IASP defined complex regional pain syndrome (CRPS) as "a variety of painful conditions of regional location alter a injury with distal predominance of abnormal symptoms, exceeding in magnitude and duration the expected clinical course of the initial incident, often rausing significant motor impairment, with variable progression over time".CRPS is characterized by severe pain, accompanied by other symptoms among which allodynia. It is a well-defined clinical entity in adults, but until recently lie doubted his presence in children and adolescents, today fully accepted this fact.Presents some differences with adult CRPS, including that is more common in girls and affects mainly the lower extremities.Case reports: Nine children (five boys and four girls) aged between 8 and 13 years old diagnosed with CRPS, the trigger box has been in most patients for the presence of mild trauma. All patients are subject to the same treatment algorithm: a) Drug tretment and rehabilitative therapy associated with the application of the capsaicin patch 8 %; and b) interventional techniques (epidural infusion of local anesthetic and/or electrical stimulation spinal cord) in patients whose relief is not adequate.The complete remission was obtained in nine patients using the treatment algorithm.Discussion: The diagnosis of CRPS should be done as early as possible which will allow initiation of treatment also is.While most children will respond to conventional treatment, there are cases where they are given the use of interventional techniques.