I get IVIG weekly and they always flush it with normal saline, both before and after. (I have a port now, but they did the same thing before the port) Have you had problems in the past? Is that why they are running it so slow? When I was on 10% solution of IVIG, the started at 50 and within and hour I was up to 200 with no problems. I know that everyone is different, but have you tried running it faster than 100? Maybe go up to 110 for a treatment, then if you have no problems, 120 for the next one, etc. until you reach a level where you are comfortable with no side affects.

Good luck with your choice!