lemongrass tea

The nutritionist from a Raw Thai cooking class I went to said how lemongrass is antiviral and anti-bad stuff etc (as most claim everything is, I presume).
Anyhow, bought a whole bunch for the recipes she gave us, but instead used most for tea.
Yummy!
A lot of contradictory stuff online about it though, so long as I dont overdose on it I guess it should be ok...
What a great find.