Sneezing into your hand
Covering your sneeze with your hand is better than sneezing into the abyss, right? Nope. Using your hands and subsequently touching food, money, or other people is a clear recipe for contagion. According to the US Centers for Disease Control and Prevention, most serious respiratory illnesses are spread by touching objects with contaminated hands. The Australian Department of Health advises that you sneeze into your elbow.
Spritzing fragrance in underwear
Although most people have enough sense not to spray perfume directly into the nether regions, you might try deodorising your underwear instead. The truth is that anything chemical near the genitals can interfere with your natural pH, and it’s likely you’ll be stuck with a yeast infection, bacterial vaginosis, or urinary tract infection (which ironically, all end up causing worse smells than what you started with). Do yourself a favour and let your self-cleaning vagina do the work – it knows what it’s doing.
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Source: RD.com