U get pin worms by putting egg contaminated fingers in the mouth.
The eggs travel
through, hatch & begin to live in your large intestines.Living pw's crawl out your anus &lay eggs.If you get an allergic rxn to the glue like stuff the eggs are laid in, it will itch a lot. Rx is so simple & free of side effects many just treat on suspicion. Otc pin worm med is available or an rx pill can be called in.