The 1stchineseherbs website calls it 'fishy smell' but I didn't notice much smell.
I bought it for my wife who has lyme - she never tried it. For several weeks, I made and drank a decoction of houttouniya and a bunch of other herbs. Every time I drank it I felt dizzy/weak so clearly it was attacking some stealth infections in me.
My decoction was made by boiling a tablespoon of the each of following herbs in water for about 20 to 30 minutes:
Andrographis, Sarsaparilla, Cat's Claw, Boneset, Artemisia Annua, Houttouniya, Turmeric, Neem, and maybe a couple of other I am forgetting.
disclaimer: that was just my experimentation and I'm not recommending that anybody try what I just described.