Every couple of weeks my wife will sit at the window with a mirror and a tweezers and trim up around the corners of her mouth. She has little invisible (to me) hairs that grow and that she can't stand. OUCH! But she says it doesn't hurt to do it anymore. And I can't help but wonder what someone would try to put a baby to sleep that can't be posted here. Probably not worth knowing if it's that bad.