I think the Cellcept did help my neuropathy to some extent...wasn't perfect, but I did have a reduction in symptoms/pain. But I was only on for about 3 months before the infection, so I may have had better results if I could have used it for a longer time. It did not help with my autonomic symptoms though.

Since the IVIG didn't go well, it might be a good option for you.

The steroid taper pack will let you know within 2-3 days if it's going to help or not...also worth a try.

The other thing to consider with IVIG is brand and concentration...they are all not the same. Some concentrations are much higher than others and brand makes a difference as well. If you have the option to try a different brand/concentration, you should. But if your insurance won't cover it any more, then it's a moot issue.