Got two thumb suckers and battling with these blighters, doing all the routine hygiene recommendations, don't think that the standard pills sold in chemist are much cop. Seem a bit hit and miss as to whether or not they work, cost a fortune and am starting to feel bad about the number I have shoved down my children in last 6 weeks. Has anyone tried Diatomic Earth to treat these, and is it safe for Children? There are several sites raving about its general health benefits and effectiveness against worms, but would be good to have a recommendation from someone not trying to make money out of selling me the stuff. And same question re Vitaklenz (very expensive but If I know it really does what it says on the tin, I will bite the bullet).