Hi Lou,
My experience with Teasel has been wonderful, once I found my 'just below' herx level. I have been taking very low doses of 1 drop only, every 2 days as a general rule. Some days my body just says "no" when I self test, and by using this method I have seen great improvements. I found it very hard to believe that such a low dose would do any good at all...yet here I am a few months later and functioning at a much higher level.
There are times when my body says "no" for a week straight. This tends to coincide with the moons, once I started charting my responses. Just FYI, I have been dealing with late term Lyme, Bab's and Bart (6 years now) and CNS involved. The 'schete's set up home in my brain.
I am convinced that the heavy herxing causes damage in every system of our body, and have found (for me) that self testing and using any herbs/supp's or Rx is only beneficial when my body says "yes".
So, in a nutshell...YES. I feel that the low doses I have been taking are working quite well for me!
I hope this helps and perhaps gives a bit of perspective on how every 'body' is different and requires an individual approach.