I've gone as far as take 20 drops of oregano oil orally in one shot up to 10 x a day. Including as much tea tree oil orally and in gel caps. I have also included them in enemas. It didn't seem to cause a change. I regularly take clove oil still orallly.
I also make a coconut oil, castor oil, oregano, clove, eucalyptus, cinnamon oil and neem oil lotion for post shower. And i mixed this with a 50/50 dmso water mix. It also wasn't significant enough. I still use this as a habit.
I haven't tried vaping. But i recall noticing a scattering once and i recall reading someone speak on this matter of weed smoking and it having an effect on parasites. I am focusing now on getting the Tapeworm out of my intestines by using rx and lots of freakin coconut flakes. Everyday at least 1.5-2 cups of it followed by epsom salt. Lots of jump rope and abdominal exercises seem to help too. Last night i started a horseradish, radish with green juice. All bitters on top of what i'm using. I've also been lurking. But it's been 5 yrs for me. Stay in touch.