If you want to do the herb route humaworm is a good product. Plus they have liver and kidney flush herbs and candida herbs so u can get all in one place. If the parasites are scattered out of the colon amd into your gall bladder / bile duct ect they are very hard to kill. When doing the humaworm check your stool and see what kind of worm or worms u are.dealing with. There is also. A parasite RX drug forum if u decide to try meds. Humaworm, and paraway make a combination of all three herbs in one capsule.also if they have scattered it will take awhile to clear it up.