We've been using a root decoction and tincture of Fallopian japonica and Berberis thurbunjii to effectively remain asymptomatic after positive Lyme tests. We are inundated with deer ticks here in the north asa and Lyme Disease seems to be one of the most under reported epidemics in our region of Maine. A strong tea of the roots seems to alleviate the debilitating effects of chronic as well as accuse Lyme disease symptoms in the instructors, staff, and apprentices at the school with a 100% success rate since 2008. Be mindful to follow strict gathering protocols to prevent the spread of this highly aggressive plant and burn any leftovers in the stove. Rinsing the roots on site and in buckets and not in the sink is also important. Here is an older but useful instructional video on this important antimicrobial.