Dry fast as a hangover cure?

Answer

This may not be directly applicable, but the most complete hangover cure I ever experienced was by doing the following:

1. In 90 degree weather, walk 1.5 hilly miles to convenience store.
2. Buy sports drink containing glucose, electrolytes, B vitamins.
3. Drink sports drink while walking home.
4. Take a much-needed shower.

This was possibly not safe, and definitely not pleasant. But I did seem to get good effects by “sweating out” the hangover pretty thoroughly before rehydrating, so it seems like dry fasting might have a place.

(That said, while that was the most complete hangover cure I’ve ever experienced, the most consistent has been from a specific preventative product. So mileage varies in all sorts of ways.)