No, with a pencil eraser: Gently "erase" the corrosion.
My boy, wipe these wrong words out with a pencil eraser.
In Hayes' most recent study, he recruited 87 healthy volunteers and examined an area of their tongues about the size of the head of a pencil eraser.
For example, the delicate skin around your eyes is only as thick as a few sheets of paper; the pads on your feet are about as thick as a pencil eraser.
