This is a pretty interesting information about myrrh. I thought it was mainly helpful against throat infections and such, and online info tends to say as much: https://herbalref.com/commiphora-myrrh-myrrha-gummi-resina/ I think I am currently pretty much free of parasites, as I did some course previously. But if I ever need it again, it is good to have a good arsenal. The usual anti parasite schedules include some edibles that are widespread: http://www.organiclifestylemagazine.com/herbs-and-a-protocol-that-eliminates-parasites-from-the-body
Garlic and thyme are the big ones. The problem is that all living organisms can adapt, and unfortunately, so can parasites. Therefore, sometimes you need to change your schedule(or protocol, as people call it).