National Geographic has an interesting article about some of the strangest hangover cures from around the world. Perhaps they mean "cure" in a way that you’ll never touch alcohol again if you’re forced to take these the morning after:

Germany: Pickled Herring
Pickled or marinated herring is the main ingredient in a sour snack Germans call Rollmops. Considered an excellent way to ward off a bad hangover, they’re made by wrapping fillets of the tiny white fish around bits of onion and gherkin. Rollmops can be a welcome part of what Germans call katerfrühstück, or the hangover breakfast.

Romania: Tripe Soup
Tripe – aka cow stomach – is the go-to ingredient for many Romanians suffering from a hangover. It’s also a common "cure" in Mexico and Turkey, and no doubt many other countries as well. But in Romania, the edible offal is boiled in a greasy, salty soup of root vegetables, garlic vinegar, and cream.

Poland: Sour pickle juice
Polish hangover remedies are all about the sour. Some say that soured milk (which is unpasteurized and has been left at room temperature for a day or tow) does the trick. Others favor sour – very sour – pickle juice, heavy on the vinegar.

Catherine L. Barker has the story: Link to interactive Flash page – Thanks Marilyn!

RUB YOUR ARMPITS WITH LEMON

Puerto Ricans apparently swear by this holistic cure. The lemon juice supposedly stops you sweating and so helps you retain fluid and prevent the dehydration that contributes to hangover headaches. [...]

SNACK ON A BANANA

Bananas contain a lot of potassium, a mineral lost when we drink alcohol and a lack of which contributes to the dehydration symptoms of hangover, says Tom MacDonald, professor of immunology at Bart’s and The London School of Medicine.

Bananas are also a source of carbohydrates and eating one will raise blood sugar levels and so stave off nausea.

Link