I had it after they removed my brain tumor. They check the intracranial fluid that way. It was no fun and it hurted but I don't think it is dangerous. If you are a sissy like me (I have to turn my head away when they take blood or I would faint ) then of course you will be scared. I always try to tell me it's not rational........

Best wishes for you coming over for you and your family. And don't forget: We will survive