hi - I just read your post. I have been getting IVIg for about a year and a half - the rate definitely impacts the severity of the headache.. have them do it very slowly - I get mine infused over 4-6 hours. The people at the infusion center used to argue with me about it saying that it could be given faster but they don't anymore... Also, do they give you Benadryl (diphenhydramine) and tylenol before the infusion? They give that to me an hour before the infusion starts and have advised me to take both every six hours for the next 24 hours after the infusion. I usually just go home and try to sleep 'till the next day... drinking fluids helps. Good luck -
Gabe