What is chronic inflammatory demyelating polyneuropathy and how is it treated?

Immune process: Condition where the body's immune system attacks the coverings of the peripheral nerves (myelin), and causes diffuse weakness in arms and legs, and facial muscles on a chronic basis. Although steroids may be useful, better approach is chronic intravenous Immune Globulin every 3-4 weeks, or even plasmapheresis. The process can be fully reversed in many cases.