I'm not a doctor, but sometimes I think the answer is simple we can miss it.
I have been eating seeded Watermelon for the past 2 weeks, read where seeds can kill those things and giving myself daily enemas (maybe twice a day) with lavender oil and lemon oil in the water. This seems to be killing them better than anything I have done in the past. Lavender oil on the skin works as well.
I stumbled across the lavender oil by accident. I read where it was nourishing for your colon, so I tried it. Well I have passed things I wish I would never see.
I also take tbsp of diatomaceous earth daily.
I pray this helps you, hang on and keep on keeping on!