You eat a big meal out, late at night. You indulge in seconds and then thirds, have a few too many glasses of wine or cups of coffee, and then go to bed on a full stomach. Wake up a few hours later, and the pain is screaming upward from your chest into your throat. You groan: Sleep is impossible. You finally roll over, get out of bed, and stumble to the medicine cabinet. What can you do to stop heartburn fast?