Ice pack

An ice pack is something that you put on your boo-boo when you hurt yourself. It is like a bag filled with special stuff that gets really cold when you put it in the freezer. When you take it out of the freezer and put it on your boo-boo, the coldness can help stop the hurting and make the boo-boo feel better. It's like a superhero that saves the day for your boo-boo!