I can recommend Humaworm for a starters.
Personally, I like to shake it up and do
more than one kind of parasite cleanse.
You should do a round and then allow your
body to integrate that cleanse for awhile.
For me that is usually a few weeks to a
month. Humaworm has a good tonic tea which
is like Essiac plus. With your level of
toxicity, it might make you more comfortable
to get some of that too.