Lotus- I don't think Stephania is on his core protocol, is it? Are you taking it for specific symptoms? There was an issue with Stephandria a while ago where some other plant was being passed off as Stephania (containing Arachadonic Acid i think its called) and caused some poisonings, so I'd make sure you have a verified source instead of the cheapest option on Ebay.
I personally do a combo of the Buhner and the other herbalist named Cowden who found Samento/Banderol since they intertwine so well. I think a key to the success to these programs are that the herbs cover a broad array of bugs all while supporting the body systems.
For instance, I'm sure you know the main component of Knotweed is Resveratrol which supports the nervous system, is anti-cancer, and also anti-viral.
So, like I said, I do a combo. I take:
Japanese Knotweed from Buhner
Samento is a specific "variety" of Cat's Claw (which Buhner also recommends), so right now I'm going cheap and just taking the Cat's Claw to compare to how I feel while on Samento to see if its necessary to pay 10x as much for it.
Banderol - Unfortunately Nutramedix is the only source for this one as well, so $30 a month.
I know I have Lyme, and it really does help me significantly. The only unfortunate part is that as soon as I stop the drops, symptoms come back. I've yet to find a permanent fix, so I guess I'll be on these long term until I either run out of money or they find something better.
You can certainly herx on these herbs, they are very broad spectrum. But you can always lower the dosage until its comfortable. No need to hit with 100%
Good luck to you!