One of the best ways to get rid of a hangover is by getting an IV. But if you aren’t in Las Vegas, the next best thing to take is a hangover pill that contains antioxidants and natural anti-inflammatories to help replenish your body with much-needed nutrients. Many people believe that drinking water is a way to quickly treat a hangover. But actually, hangovers are not caused by dehydration, being dehydrated is only one physical symptom of a hangover.