The best way to get rid of Hangover is basically SLEEP!
Also, drink plenty of water, as this provides the much needed for the liver to get rid of all these poisons you've consumed.
Finally, hangovers can last up to 2 - 3 days, but mostly you'll be aight in 24 hours. So just lay back and let your body do the work.
"Keep drinking then" - person 2
"What more alcohol?!" - person 1
"WATER you pillock" - person 2