i've had very similar reactions when they get stirred up (only i was using herbs)...i've had all of the things you mention, hives too, feeling them move, big ones small ones, everywhere. i thought for a while i had morgellons because of the crawling sensations all over my skin.
what doesn't kill them may make them very annoyed. cloves helped me (2 tsp or more at a time) when this happened...it didn't stop everything or clear all the parasites of course, but seemed to quiet things down.