Arachnoiditis is a rare pain disorder that is caused by inflammation (swelling) of the arachnoid, which is one of the membranes that covers and protects the nerves of your spinal cord. The condition can only affect people over the age of 50.
Arachnoiditis is characterized by excruciating stinging and "burning" pain, in addition to neurological issues. It affects the nerves in your lumbar (low back) and thoracic (middle back) spine the majority...