[header] How to cure a hangover fast [title] Stay hydrated. [step] Get the water flowing as soon as you wake up. This may help push toxins leftover from excess alcohol out of your system, but the main goal of hydration after a night of drinking is to save you from getting dehydrated. 
While experts don't know for sure what causes hangovers, most people agree it has a lot to do with not having enough fluids in your body. Doctors recommend that you drink eight 8 oz glasses of water a day.