 And if you've never heard of that, maybe you've heard of it and just didn't know what it is, but there's a lot of great benefits from what's called witch hazel. And internally and externally, practitioners use different parts of the witch hazel shrub. It's a big bush shrub, including the bark, the branches, and the leaves to treat skin inflammation, bruises, and wounds. And though witch hazel is usually a topical application, health benefits come from its use as a tea herb.