When Herbal Remedies Can Ruin Your Health

We've all heard about herbal supplements that have worked for someone we know. People swear by them: echinacea for a cold, ginkgo biloba for memory or the peppermint in the salve your aunt believes can ease chest congestion. Over the past decade, use of herbal supplements has jumped 83%, going from $12.2 billion in U.S. sales in 1996 to a whopping $22.3 billion last year. While many of those users may be skeptical, they figure, Hey, these things are natural; what harm could they do?