This is a common thing. Start treatments and symptoms ease up, but a couple of weeks into it, symptoms return, often with new symptoms following. This is because you are herxing, which means that you have too many toxins in your bloodstream. I would encourage you to increase or start detoxing.
Some good information on detoxing is listed in our "new to Lyme?" thread, and this is a wonderful listing of good detoxing routines. Do be sure to work in quite a few daily: www.tiredoflyme.com/detox-methods.html
Herb only treatment for Lyme & Bart ended 12/11 - no active symptoms for 2 yrs -Herb only treatment for Babesia ended 12/12www.healingwell.com/community/default.aspx?f=30&m=2977364
Had Lyme, Bart, Babs, RMSF, Ehrlichia, Myco, Anaplasmosis, EBV
New Lyme case 8/2014 - Healed 1/31/15 - unknowingly had Asymptomatic Babs and Asymptomatic Bart, being treated now though (2/2016)