The Gbs booklet has a lot of good info for you….
Glad we can be of some help for you.
I was diagnosed gbs. I was never on a vent, and my symptoms came on within a few weeks and pow, I started walking like I had polio, I had severe back pain, and other symptoms.. I went into the Emergency, and they did a lumber puncture/mri/reflex/nerve conductions etc… These are all tests doctors can use to determine if there is ongoing nerve damage and what he has.. Is it possible the prednisone and ivig are counterproductive taken at the same time for your son? It has been so long since I have read up on this stuff…. Be very active in your son’s treatment plan and diagnosis..