I have heard of taking black salve internally but not straight bloodroot, maybe it would be the same. I read that you take a pea size amount of the black salve and put it in an empty capsule and take it in the middle of a meal 1x a day. The protocol said to take it for 7 days then stop 2 days then 7 days stop 2 and then 7 more days for a total of 21 days. It was written to do this schedule 2-3x a year to clean you whole system. AS for laying eggs and the critters, their is a very simple Colon Cleanse that kills yeast and parasites very well. I actually saw parasites come out. You have to go to http://www.healyourbodynow.com and click on the products page and its listed as Colon Cleanse I think. Hope that helps, keep the faith!