Your BP may have gone down because you need to stay hydrated.

I've never had IVIG and basically can't. I do know that you shouldn't go too overboard if IVIG kicks in and makes you feel like super woman. You can still get worse, even with IVIG. So take it easy, okay?

I didn't get to answer your questions in another post. The Tylenol is for the headache many people get with IVIG. Most people continue to take it for a couple days. The Benadryl is "in case" you have an allergic reaction to the IVIG.

Annie