Is it true that mebendezanole kills adult pinworms inside you causing the eggs to hatch inside and reinfect you? this worries me??

No: The Mebendazole is a toxin that affects the nervous system of the worm and any eggs developing within them.To reinfect yourself, you simply contaminate your fingers with any eggs in your environment.These can be bed clothes, sheets, etc.These eggs pass to your face or mouth by chance,travel through your stomach to your gut.Wash your hands and sheets more often and reinfestation will stop.