physedgirl - I looked it up and Dr. Gordon has a lot of information on the BW formulas.
I found a page on the A-FNG and he does mention herxing.
Here is the link - it's very informative = has a challenge protocol and a treatment protocol:www.gordonmedical.com/unravelling-complex-chronic-illness/services-offered-at-gordon-medical-associates/guidebook-for-the-byron-white-formulas-table-of-contents/the-byron-white-formulas-a-fng-and-chronic-fungal-infections/
Moderator, Lyme Forum
Symp started April/2013; Buhner's Lyme May 15-July24/14; Igenex pos. July 3/14
Doxy: July 4-Aug.24/14;Zithro July26-Aug24/14; Amox + Proben. Aug. 29/14;
added biaxin Sept. 26/14
Disc. amox,added Ceftin Nov. 20th.;
Disc. biaxin added Buhner bart herbs Dec/14;Jan/15 pulsing Tinda (w/ Ceftin);
Abx/herb break Apr-July/15; July-mino; Aug. added Rif;
Nov./15 mino - to biaxi