Liver Cleanse & Parasites?

We are thinking about ending the fast with a liver cleanse, but there are all these warnings on the site about making sure you are parasite-free first. What should we do? We didn't do any anti- parasite stuff before starting the MC. Do you *really* have to. Can you do it at the same time (it seems a bit harsh ... )

Also, which one liver-cleanse pros around here tend to do? We were looking at the Dr. Hulda one, b'c it looks the most user friendly ... but not very clear : Black-Walnut Tincture? Why? How much? And Ornithine?

Any suggestions would be helpful! Thanks!!