Drink 8–16 oz of water right away
Sip steadily instead of chugging if you feel nauseous
Use an oral rehydration solution or electrolyte drink
Eat water-rich foods like watermelon, cucumber, oranges, or soup
Avoid alcohol and limit caffeine
Rest in a cool place
Drink small amounts frequently over the next hour
If you are sweating heavily, replace electrolytes as well as water
Seek medical help if you have confusion, fainting, severe weakness, or cannot keep fluids down