Back pain? Better Options Than Nerve Blockshttp://articles.mercola.com/sites/articles/archive/2002/09/04/back-pain-part-two.aspxNerve blocks, commonly given to patients with low back pain, don't seem to reduce pain, improve mood or cut the use of analgesic medications. How do nerve blocks work? Lumbar sympathetic nerve blocks contain either local anesthetic or local anestheticenCommunityServer 2008.5 SP1 (Build: 31106.3070)