Wormwood is a power house when it comes to killing yeast over growth (insert yeast infection joke here). Also the chemical artemisinin along with the aerial parts are used to make anti-malarial pharmaceuticals. Artemisinin can kill just about all malarial parasites.

It also has azeulenes, which is an anti-inflammatory. Sesquiterpene lactones acts as an anti-tumor. It also tends to retain a lot of moisture leaving a light powdery fungus on leaves. Which is easy to mistake for just a slightly dirty leaf that appears to be easy to just wipe off. Wish I could remember the name of the fungus.

I was so fascinated by this herb when studying in school. It does incredible things and happens to be so multi-purpose. It's very popular among Traditional Chinese Medicine as well.

If you're a lover of absinthe, I'd recommend investing the money on a absinthe that actually uses the herbs rather than artificial ingredients. You may as well enjoy the medicinal/therapeutic properties while you're at it. :-P