icu, Thank for the list of topical treatments for parasites. I have Morgellons and am regularly, constantly infested with some type of bug or worm, you name it. Anyway my scalp was itching so it was driving me crazy plus The barely visible threadlike worms were dropping off me onto everything! I washed my hair and applied the icy hot cream to my scalp and hair and after the initial burning sensation, I now have sweet relief! Am sleeping with this on tonight!