Forgot to answer..yes, I took the Barefoot's at 8 TB (one hour in between taking 4TB and 4TB) about once a week. Not cheap.
NOT staying on the same doses all the time is important too. I found that when I felt the movement, that was the time to hit them even harder, and add to what I was already taking.
I feel lucky that I haven't had the head parasite stuff like many people find once they get started. Yes, I have heard of people killing them in their sinuses.
Often times too, when people start killing what they think are aiming at the larger parasites, it stirs up the other ones like the Lyme coinfections. Feeling them under your skin, the creepy crawly thing, is what people talk about feeling with Lyme. And, head and face stuff.