[header] How to cool off your mouth after eating something hot [title] Coat your mouth with dairy products. [step] Dissolve the spices' capsaicin with the casein protein found in milk. If you're at home, fetch yourself a glass of milk pronto. 
If you're at a restaurant, flag the server down and order one right away. Or, if a yogurt dish has been served as a side to your meal, treat your mouth to a spoonful, since the dairy in that will work, too.