You might want to check out this website: http://curezone.com/forums/f.asp?f=740. He talks about getting pH balanced before embarking on cleanses. It's the first thing that's really started to turn my health around.

Yes, I've used DE and I don't use much, but the stuff is powerful! I recommend the K-Mins brand as it contains minerals with it. Maybe used 1/4 tsp to start if you cannot handle Humaworm caps or Clarkia drops?

Garlic is also a good helper...kills bacteria, fungi and parasites, but not as good as the herbs and/or DE. Meds are NOT the way...so don't go there.