I've been getting IVIG since May (3 months now). It has reduced the fasciculations elsewhere in my body, but my left hand is still losing functionality. Before treatment, I had lost extension in my thumb and index finger, and this week my little finger went. I've been hoping that maybe the minor symptoms get better first, and major ones take longer, but my doc seems alarmed at the lack of improvement in my hand. However I am his first MMN patient (diagnosis still tentative). I've been looking for reports of various experiences with IVIG response with little success, and would appreciate any reports or sources. Thanks.