Hangover cures: for the people, by the people

[cleolinda]

Important question. We're dealing with a hangover (not mine) over here, severe nausea in particular. I tried to administer water, knowing that hydration is key, but she nearly threw it up. What do we do? And is there a point where it's so bad she may need to go to the hospital?

ETA: She--Sister Girl (what? She's 22. I started having flashbacks to my own college days)--is still feeling pretty crappy, but she's had Gatorade and a Lunchable (hey, it was what she wanted), and she's up and about again. Turns out she'd already thrown up most of whatever at the original location; I was mostly overreacting concerned about her possibly having to go to the hospital for dehydration, but she seems to be holding fluids down and is at her boyfriend's now.