Most people stop too soon when it comes to killing parasties. They can be hiding in biofilms in any part of the body. Use a systemic wormer for the duration. It took me five and a half years to see the end of the ones I had. They can even be in the bones and brain, so stay on a systemic dewormer for life. Every 3 days is considered maintenance. Get some of the good tasting stuff. http://www.oldfashionedspices,com.