Rita,
I believe you are writing about an increase in BP during the IVIG infusion process.
Usually, such an increase can be prevented or minimized by slowing down the pace of the infusion, so I just wanted to make sure that you tried that already.
I'm glad you are monitoring your BP on a daily basis. That should help to identify and solve the problem.
Other than that, may we gather that IVIG has been working for you during the past year-and-a-half? It would be reassuring to know, given the recent news posted in this site.