my son's molar tooth has some skin on it. this is paining and bleeding. what to do?

A. hello. Usually when a child is between 6 and 7 years-old, new molars (First Molars) grow in the back of the mouth.  When this happens,  there can actually be a piece of gum / flap of gum at the back of the mouth that actually looks like a squashed jellybean, pink and strange.  This is called an operculum.  What do you do?  Rinse with warm/hot salt water.  check with dentist on how you can get rid of it