Hulda Clark wrote that a person can't clean out their bile system and gallbladder if they have parasites there. Theseare usually flukes living in the bile ducts. Befor doing the Liver-Flush I did Clark's herbs and several other herbs for parasites and did not notice any dieoff reactions although I had many parasites. Quassia wood chip tea was expecially effective. I did a Liver-Flush after doing 3 weeks or more of quassia and got out many worms and flukes. I had only seen a few fluke-like forms come out with all the other LFs or parasite herbs. See if you have any age spots on your skin, Clark wrote that these are fluke spots and a good indication you have them internally. Search for Age spots or Liver spots for images.