Hi guys, correct me if I'm wrong, but mebendazole does not work ouside of the GI tract.. It won't even work inside of the throat unless you take very big amounts, and you don't want to do that because its way too hard on the liver.
Albendazole is what is required for wormy monsters outside of the GI tract.
BTW from my personal experience, the worms seem to love hanging out in the shoulder area, particularly the back of the left shoulder blade, and more generally the left side of the body.
I had one travel up my neck on the left side, it was definitely outside of the GI tract and it actually left a bruise just under the skin, given the skin is so thin around the neck it was easy to see and painful to experience.