Yes, don't drink so much next time.

Nah, I'm kidding. There really isn't much you can do for a hangover. Just drink plenty of water, but I'm sure you're thirsty enough already from the drinking, or orange juice will help give you some energy back. Take an Advil or whatever kind of headache medicine, grab a joint, and sit on the couch. The only way to get rid of a hangover is rest and water, plenty of water, or Og.

Next time, before you pass out after drinking, chug down a few pints of water. You get hangovers because your body gets dehyradated, and I know, the last thing you want to do is drink more liquid after a dozen or so drinks, but it's worth it.

Good luck.