If you have a heavy infestation of any parasite, no herbal remedy is strong enough to heal you completely very quickly. Like Dr. Bailey likes to say, it peels them aware in layers and every cleanse goes deeper. Sometimes, if you have a serious infestation of something like Ascaris, you may need to take the pharma drugs to save your life. Even Dr. Bailey says that.
I have a very infestation of nematodes, and am having to resort to pharma drugs after two rounds of Humaworm did not get them under control. I'm too sick to wait. Dr. Bailey and the folks at Humaworm understand this.
You might also go over to the Parasite Drugs forum. They are very knowledgeable.