In her latest Instagram video, Dr. Pimple Popper debuts this fancy tool and shows how to make quick work of a huge blackhead. The tool has a handle on one side and a small metal circle on the other.

Yes, you can pop a pimple—but only the right kind, at the right time, and in the right way. Dermatologists stress that preparation, proper technique, and knowing when to stop are key to avoiding scars ...