Hi @azza1 -- there are a few other discussions that you might want to read through and ask your questions on IVIG.

> Groups > Neuropathy > CIDP (chronic inflammatory demylinating polyneuropathy)
-- https://connect.mayoclinic.org/discussion/cidp-chronic-inflammatory-demylinating-polyneuropathy/
> Groups > Neuropathy > IVIG Infusions
-- https://connect.mayoclinic.org/discussion/ivig-infusions/

There is also another article that I ran across that you may be interested in - Long-term efficacy of intravenous immunoglobulin treatment in 49 patients with chronic inflammatory demyelinating polyradiculoneuropathy (P5.2-075)
-- https://n.neurology.org/content/92/15_Supplement/P5.2-075.abstract