Well, considering doctors are totally trained to ignore parasites, they aren't at all helpful, because we all are overloaded with them. They are NOT just a third world problem.
If you do a Liver Flush before depasiting, according to Dr. Clark, it'll likely make you feel ill, and not allow much flushing to occur.
Really, get her book and read it. Quit wasting your time with all the misleading unhelpful crap that gets 'advised' here. Much of it is just product hawking (disguised as 'helpful advice') for the pharmaceutical companies who hire reps to push products and drive folks away from the zapper, which is VERY effective, despite their claims otherwise. The pharmaceutical companies (cartel) owns pretty much all the health industry any more, so sell, sell, sell. Even of 'natural' stuff.