you need to take Wormwood in conjuncture with raw unsalted pumpkin seeds and cloves. also use a laxative, like cascara sagrada. its important that you get your bowels moving to eliminate these nasty critters.
i used Wormwood before by itself and didnt have anything happen. have you seen any evidence of what might be going on? if you list the symptoms here someone might be able to give you a better idea of what it could be.