Painful White Head Pimple. This could be a lie bump especially if it appears at the tip. That was probably pus that you squeezed out a result of the blockage.

A comedo is a typical acne lesion. Someone who has mild acne has whiteheads or blackheads that are. In its turn it leads to glands stretch and the contents to start to be indicated.
A white pimple on the tongue is one of the more common bumps to expect.
Another way of describing them is a little white bump that is painful. If you see one above or below your tooth make an appointment with a dentist. Just as you can get pimples on similar oily spots - your forehead or nose - you can get them on or around your nipple. This is especially true of deep or painful pimples.