It takes many many many rounds of drugs / herbs to get them. If u can ever even get them. Rotate drugs / herbs for many years...im now trying the citrus oils ( lemon, grapefriut) in food grade. Mega enzymes and coconut oil with dmso u can apply to your body to get that one in your side. Plan on it taking several months to years if theyve spread out of the colon and u can feel them moving.