Myth: Take a cold shower to sober up A cold shower can give you a second wind, but it's not going to reverse the effects of alcohol. In some cases, the shock of a cold shower can actually cause people to lose consciousness.
Never allow a drunk person to fall asleep unattended. Their body will continue to absorb alcohol even after they're asleep or passed out, which can lead to alcohol poisoning. They could also choke to death on their own vomit if they fall asleep in the wrong position.