She's teething and just needs something to chew on!
Google "bully sticks" and get her some of those to chew on. They are safe and natural. Just be sure to take them away when they get too small. You don't want her to choke on a small end. You may just have to limit her space more if you aren't able to watch her. You can put some pennies in a metal container and shake it when you're there to discourage her from doing something you don't want her to do. But that's only good when you're around.