Neem (also known as nimm in Punjabi) is most useful herb on this planet. I am from Punjab and we still have so many nimm trees in our farms. And I used to eat neem / nimm fruit also know as namolian every day during their season and I used to clean my teeth with the neem / nimm wood every day. Never had any teeth issues or parasites issues until I moved here in the US. Well, taking / consuming nimm (leaves, oil, juice, fruit etc.) in a small amount is recommended unless other wise you know what ghee (clarified butter) is and add 2-3 tbs of ghee in your every day diet (lunch, dinner etc.). Punjabi people add ghee in their daily diet every day and that could be the reason that why it never bothered me but, if you do not eat ghee and over use the nimm then it can effect your eyes and some other internal parts as well. Yeah, you can consume it in any form (eat fruit, eat leaves, oil, juice etc.) but do not over dose.
I first noticed that I had parasites a month ago. I tried wormwood, cloves, walnut hall, DE, for over 30 days and not much elimination of them. I read on a few searches that the herb neem will expel them, prevents them from feeding you and stops the eggs from hatching, Finally ordered some and after taking it two day I could not believe what I was seeing coming from my body. I could feel them moving around throughout my body head to feet causing me to lose sleep. I have been running to the toilet most of the day and each time looks likes hundreds of the expelling from my inside. Close inspection I could see them moving around inthe toilet. I also took a laxative, triphala to get assist with the neem. It works and it works fast. Hopefully in two weeks or so I will be parasite free. Neem is a lifesaver for me. These things were crawling around in my ears. Face and brain. This is the first time, I feel them lessen up. Now I am in the die off stage. Try neem!!!!!!! I need something quick and this is doing it for me so far. Do a search on neem and see how good it works on all types of parasites.