Question re: parasite cleanse and liver flush

I've been using Green Black-Walnut hull extract with cloves and Wormwood for a couple of weeks and I'm up to taking a dropper and a half (no zapping). I can't tell that I've passed any little nasties. I wonder if I should use this stuff for a couple more weeks before I flush or should I go ahead and take the plunge? Any advice out there? I know you are supposed to take it for 2 weeks, wait a week and repeat until you've done 4 2-week treatments.

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