There are also many home remedies, including honey and various herbs, but here again, there is no scientific backing for their use. The only known cure for a hangover is time. So, get as comfortable as possible to wait it out. A couple more pain pills and cool a compress on the forehead can lessen the hangover headache. Drinking plenty of water will restore the body's fluid balance.
Light food provides some needed nourishment.
And, if you are up to it, exercise. The endorphin stimulation may provide some pain relief and the effort involved is a good distraction. Don't drive with a hangover. The dizzy, queasy, headachy, dry mouth, depressing feeling affects driving. Moreover, hangovers can heighten road rage.