You can't really "de-worm."

Nematodes, in particular, are everywhere.

If we took away everything that was you, and left only the nematodes that infest you, there would be a 3-D shadow of you left... made entirely of nematode worms.

For the most part, your worms are benign. Sometimes you can get an over-growth, which will sap your energy and nutrients. Sometimes you can get some mean critters which will actually consume more than their fair share (pinworms, tapeworms, those evil worms that cause elephantiasis, etc.)

If you are pretty healthy, you have nothing to worry about from your worms.

Next lets talk about the mites that live in your eyelashes!