Boo,
You're probably gonna' find this one hard to believe, but it works. About 30 years ago I was a newscaster for one of the local radio stations. I walked in to the studio one morning to do the 7:00 a.m. newscast, which takes about 15 minutes and my voice was totally shot. My throat felt like a piece of raw beef and looked equally as bad. The studio director, who was as old as I am now, said "Go into the frig, open that jar of sour onions and pop one in your mouth--you'll be just fine, at least for as long as the newscast takes. I took his advice, and within seconds after eating the sour onion, my voice was back, sounded as good as ever and the pain was completely gone. The effects last about an hour at best, but I've been using this technique ever since. Essentially, the vinegar anesthesizes your vocal folds and much of your throat. Additionally, the vinegar apparently cuts through any mucus that may have accumulated on the vocal folds. As for the booze, forgattaboutit! Sudafed, those little red pills, are great to dry up the post-nasal drip, which also helps keep you going when you have to perform with a cold. Keep in mind, however, that they are an antihistamine and will dry you out and make you a bit drowsy.
Good Luck,
Gary
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