They happen when a mixture of dead skin cells and oil (sebum) gets trapped in your pores. While they aren’t prone to infection, blackheads can become infected if you pick at them. Picking at a ...

Blackheads are not dirt stuck in your pores. A pimple is a clogged pore that has become infected. The infection makes a white pus-filled tip on top of the affected pore. The area around the ...

If blocked pores become infected or inflamed, a pimple -- a raised red spot with a white center -- forms. If the pore clogs, closes, and then bulges, you have a whitehead.

An ingrown hair cyst occurs when dirt or oil blocks off a pore, causing a hair to become trapped. This leads to swelling and looks like a small, red bump. If it becomes infected, an ingrown hair ...

Sometimes the pores are infected, appearing inflamed, swollen, and irritated. No matter what the cause, darkened hair follicles leave you with the appearance of strawberry legs. Fortunately ...

It also has an oxidized plug that gives it a distinct black appearance. Pore of Winers can swell and become infected if prodded and picked, often making them more painful than your average blackhead.