When most of us feel hungover we tend to crave a bacon sandwich and a strong cup of coffee - for most of us more alcohol is the last thing on our mind.
But according to one scientist drinking more alcohol the next day, aka 'hair of the dog', may be the best way to beat the fuzzy feeling.
Award-winning science journalist Adam Rogers, author of Proof: The Science Of Booze, believes having alcohol the morning after the night before is the best way to recover.
All alcoholic beverages contain ethanol as well as small traces of poisonous methanol - doctors treat methanol poisoning by giving patients ethanol.
Rogers writes: "If methanol poisoning is at least in part responsible for a hangover, having a drink the next morning may alleviate symptoms."
But previously speaking to Men's Health, Dr. Hall-Flavin said he does not think more alcohol when hungover is a good idea.
"It will provide a numbing effect, but all you're doing is prolonging the inevitable, and it will likely make your headache worse," he said.
The NHS state that men should not regularly drink more than 3-4 units of alcohol per day and women should not regularly drink more than 2-3 units per day - but if you do find yourself feeling hungover, you should not add more alcohol to your system.
"Hair of the dog (drinking more alcohol) does not help. Drinking in the morning is a risky habit, and you may simply be delaying the appearance of symptoms until the alcohol wears off again.
"If you've had a heavy drinking session, hangover or not, doctors advise that you wait 48 hours before drinking any more alcohol, in order to give your body tissues time to recover.
"Sometimes, of course, a hangover makes that advice easier to follow," they say.