1. Water
If you haven’t already put two and two together, water is your knight in shining armor in the scenario of a hangover headache. Hence, why it is the best foods for a hangover headache. After all, the lack of this elixir of life in your body has a lot to do with why you experience so much agonizing pain; and although guzzling down a tall glass of water after a night of [heavy] drinking won’t give you instant relief, the more you sip the faster your body will recover itself. Also, while keeping a bottle of water close to your bed for immediate consumption in the morning is a good idea, an even better one would be to drink a glass before bed. This paired with the glass you have in the morning will do wonders for that nasty hangover headache of yours!