Lie down and elevate your legs above heart level
Drink a glass of water quickly
Drink an electrolyte drink or oral rehydration solution
Eat a salty snack if you are allowed to have salt
Stand up slowly and avoid sudden position changes
Tighten your leg and abdominal muscles while sitting or standing
Cross your legs and squeeze your thigh muscles
Avoid hot showers, alcohol, and heavy exertion
Sip caffeinated coffee or tea if you normally tolerate caffeine
Wear compression stockings if you have them
Seek urgent medical help if you faint, have chest pain, shortness of breath, confusion, or severe weakness