This is fascinating info. Interestingly enough years ago at the beginning of my path to health I worked with a master herbalist. At the time I had severe allergies that were increasingly getting worse as time went on after I initially got ill. He had me doing some various homeopathic remedies and some teas which consisted of milk thistle and licorice. To this day I take these two regularly via tincture. Not regularly but monthly I take these two at least for a week.
He never thought to mention parasites at that time.