Answer:
You can't. Period. Don't believe all the "detox" stuff online, either. They're scams. It takes your body 2-3 hours to eliminate 1 ounce of pure alcohol (2-4 drinks, depending on alcohol content). Nothing can speed that up; the liver works as hard as it can. As for ETG tests, they're so sensitive that flushing doesn't help much, unless it has been a couple of days, then it might help.