Hi Debbie-lee,
Thank you for this question. You are partially correct. This is a Home or Community Herbalist level course and there are many many concerns that come up in any given day with any person so I think that the topics covered in the course were chosen as the most common and relatively safe concerns that someone could work with. This is just the starting groundwork sort of thing. 🙂
Parasites can be a bit more tricky and the herbs are also very strong. It’s best to visit a Registered Practicing Herbalist and perhaps even someone who specialises in this realm as no two parasites are the same as well.
Warmly,
Benna