Hi there. My family has tried everything to get rid of pinworms, OTC and mebendazole. We cleaned everything for months while taking the meds. I became OCD and now am taking medication for that as well. It has given me so much anexiety that I am on antidepressants. We have done stool, blood and tape tests all came back negative but I have seen the worms on my sons bum and one on mine. It's a terrible experience and we are going on a year of trying to rid ourselves of it. Please help us, any advice is welcomed. Thank you for your time. Dianne Erwin