It has clearly been a nightmare. Great description.
I believe the parasites and other problems are there because we are metal toxic. I try to remove the metals and therefore remove the food for these creatures. I always think of a banana. If you kill all the gnats flying around a banana that is going bad, what do you have tomorrow or the next day? More gnats. You have to fix the banana to remove the bugs. Lower the metals, the food for the parasites goes away. Hope this helps.