Kathie, You can always try Claritin if Benadryl makes you too drowsy. The problem with Clairtin is that it's a 24-hour drug.
When you are having the infusion, always let the nurses know if there are any issues. And don't hesitate going to the ER if you get a severe headache, which might indicate meningitis.
Fortunatos, Actually, most Americans have their IVIG done in infusion centers. There are very few people who do Hizentra (self-administered injections) or home IVIG. We put our pants on the same way as people in other countries do too.
I hope the IVIG goes well. You've gotten a lot of good advice.
Annie