 [ Symptoms ] How do you treat Faint? [ Disease ] 1) Lie down or sit down. To reduce the chance of fainting again, don't get up too quickly, 2) Place your head between your knees if you sit down, 3)Position the person on his or her back. If there are no injuries and the person is breathing, raise the person's legs above heart level â€” about 12 inches (30 centimeters) â€” if possible. Loosen belts, collars or other constrictive clothing. 