As far as scattering goes I don't know what to say. When I started cleansing I had parasites all over my body. I could feel them crawling around the top of my head, intestines, stomach and muscle tissue. If a person takes enough herbs over a long enough period then all parasites should be killed throughout the body. I think most people don't take enough herbs and switch over to meds.
I think the greatest piece of disinfo is that parasites become resistant. Herbs are not Antibiotics . Everyone is afraid of cleansing for longer than 30 days. Well I just kept throwing different STRONG combo's at them and have improved greatly.
Many herbs work systemically to kill parasites throughout the body. I just kept at it for 18 months straight. I hit them as hard as I could stand it. Now I am just maintaining.