Sy, in reading Hulda Clark protocol in it's entirety, you will note the pre-flush steps ... colon cleansing, kidney cleansing, parasite cleansing. It's not a "yeah, I did that a while back" thing, it's part of every flush.
Doc Sutter, better known here as knows back in the day told me over and over kill the bastards, do a flush, kill the bastards, do a flush. It worked for me. I passed literal quarts of liver flukes as well as an ungodly amount of other parasites in the year and a half that it took me to clear my liver.