Do. Not. Pick.
If your teen does get a blemish, and believe us, she will, encourage her to keep her hands off the scene of the crime. As many of us learned the hard way (despite the fact that our mothers warned us of the hazards of zit-popping), if you pick at your acne it will only make it worse. Not only that, picking may cause long-term damage and will be even harder to cover up. It’s not worth it; leave that pesky pimple alone.