Thanks for your help
Thank you all very much for your suggestions.
He was pre-medicated with benedryl and tylenol but I don’t think he drank enough. I will also request that they slow the rate down for his next IVIG.
I printed off some information for Logan to read now that he understands that this is something he will be living with. I know that he thinks that I dont know what I am talking about (he is at that age that mom doesnt know anything:rolleyes) when it comes to hydrating himself before, during and after but now that he has read up on it I think he understands the importance of it.
He is doing better today and his headache is almost gone :).
Again, thank you for your help.