"The spicier the food, the more water you drink (maybe)."

Negative. Water actually amplifies the sensation. The sugar in the desert counters the sensation, as does milk. If I go awhile without eating "11" hot, when I return I have to follow it with milk or sugar(or both=Thai Tea or Cafe Sua Da). Otherwise, the subsequent burning sensation can be quite unpleasant. I always go to "11" when I feel a cold or flu coming on to combat the contagion, it works 9 times out of 10. YMMV.

If I go too hot or if I'm making a really hot hot sauce, I'll go for citrus. The acid counters down the oils and help faster. In the sauce, it balances things. Same for pineapple.

> Negative. Water actually amplifies the sensation.

Yes. However, if it is very cold water, then it lowers the mouth temperature, which could take it below the 'heat' threshold.

You'd have to keep drinking it though, because after a moment, the temperature returns to normal and the burning sensation returns.