Nerve blocks are injections that are put into the CRPS affected limb or extremity and are done usually by a pain specialist. They are used if other treatments for Complex Regional Pain Syndrome, such as NSAIDs or physiotherapy, have been unsuccessful. Some patients with CRPS or chronic pain say that these blocks can give them some temporary relief from their pain and other symptoms they may have connected to CRPS or other chronic pain conditions.
Nerve blocks include:
(Forouzanfar, T. et al. 2002)