Lorica is right about the chinese herbs. Unless they are grown & the product then manufactured in the USA, they could very well contain some poison. Chinese-manufactured herbal remedies are notorious for being contaminated.
I hope that you get well really soon. This sounds awful.
Re custom-made anti parasite forumulas, I believe that Mr. Humaworm will make his formula for you according to whatever you need, so why don't you go over there at "ask humaworm" on curezone.