Which Natural Remedies Really Work

Will placing a tea bag on a cold sore make it disappear? Can you ease hot flashes with herbs? And does putting yogurt on your nether parts have a prayer of curing a yeast infection?

It used to be that you'd hear about these kinds of home remedies from your mom. These days, they're touted on websites, blogs and online forums. In fact, 61 percent of American adults turn to the Internet to find help in treating what's ailing them, a 2009 study reveals.

But do these natural moves actually work -- and, just as important, could they do more harm than good? Health asked medical experts to weigh in on the internet's most popular home cures.