Arachnoiditis simply means inflammation of the arachnoid (middle) layer of the spinal canal covering. Arachnoiditis has, in the past, been a taboo subject in medical circles. It has been considered a rare disease usually caused by medical procedures, and the condition so hopeless that treatment wasn’t even considered. Today we can easily diagnose the condition, and the new treatment protocols bring some relief, recovery, and hope to almost every person who is afflicted.