Barb
I know of a couple of people who have had good luck with IViG but don't belong to any forums. My neuro wanted me to try it, but after some further investigation, it was decided that due to my numerous allergies, it was probably not a good idea. That's why I opted for the clinical trial I am currently in.
Here's a link to an article about it that may give you some information about the efficacy of it. I do believe there is currently a clinical trial ongoing for it.
http://clinicalevidence.bmj.com/cewe...2/1202_I22.jsp
There are at least 7 different formulations of IViG, including one for diabetics. IViG is Intravenous immunoglobulin. It's commonly used to treat Guillain Barre.
I hope this information helps you. I know that you are looking for first hand experience which is always good. Hopefully there will be some when everyone comes back after the weekend!