Please DO NOT fast! They won't starve they will just feast on you, keep multiplying and make it even harder to fight them... Just keep trying... I've had a whole "host" of problems myself and am still trying to figure out the nature of the beast(s). And like many of the folks here I'm playing a guessing game as to exactly which kinds of parasites I have.
Eat what they can't tolerate. Pumpkin seeds, lime, coconut, pineapple(fresh not sugared from a can). NO Sugar
at all! I've noticed that when I cheat with something sweet, a short while later I'm itching like mad... Terramin clay... oils: clove cinnamon, myrrh, peppermint, black cumin(Nigella not the cooking kind). I've been experimenting with putting some on the bottom of my feet at night on a homemade patch that absorbs throughout the body.
A Zapper shook some nasties loose and I use it for most of the day and night. Here's what I found the next day after starting the Zap:
Whatever you do, don't give up!!! Keep trying!