No one has been able to come up with a sure-fire way to treat a hangover, but there are some steps to minimize the pain. Sometimes you'll know in advance that one night will be a particularly sobriety-challenged evening. If you know that you'll be drinking in a few hours, make sure that you've got something in your stomach. Consider your beverage of choice. Congeners are toxic chemicals that are formed during fermentation, and some liquors have more of them than others.
Most scotch whiskey has about four times more congeners than does gin.
Brandy, rum and single-malt scotch have about six times as many congeners as gin. Red wine has more congeners than white wine does, so consider having fish, rather than steak for dinner. Stay away from sweet tropical drinks, like zombies and pina coladas, and avoid sugary foods like cookies, cake and chocolate while drinking. Sweet flavors make it difficult to know how much alcohol you are taking in, and some people feel that the combination makes one's head spin. It's difficult to keep your wits about you when drinking heavily, but if you can remember, keep these things in mind.