I think it's a matter of preference what you do. :D
One thing to consider, the colon cleanse is high amounts of Psylium Husks....so lots and lots and lots of fiber, it really shouldn't give you too many side effects except high amounts of poo! However, fiber binds...and though they say you can do the two together, some people recommend that you don't simply to make sure that the parasites you have are getting their butts kicked.
The cleanse however, with this being your first one may be quite miserable....not going to lie....my first one was terrible but you will get through it! Ask lots and lots of questions!! Sometimes you will get more of a response on the "parasites" forum, vs the humaworm forum...
Lastly, another thing to consider, if you are having trouble eliminating I would consider doing a coffee enema vs taking fiber. It will help eliminate toxins as well as get your bowels moving...Good luck! Keep us updated!