While they aren’t prone to infection, blackheads can become infected if you pick at them. Picking at a blackhead can break down the wall surrounding the affected pore, allowing bacteria to enter.

The area around the infected pore can become inflamed, red, and sensitive. How do pimples form? Your skin is covered in millions of tiny little wells, or pores, that sit at your hair follicles.

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.

If you're certain that your ingrown hair isn't infected, there are at-home remedies for the situation you can try. Dr. Luftman says that if a hair is plugging a pore, you can use clean tweezers to ...

Sometimes the pores are infected, appearing inflamed, swollen, and irritated. Factors that contribute to acne include: Hormone changes that occur during pregnancy or your monthly menstrual cycle ...

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 ...

A pore of Winer is filled with keratin and dead skin cells, ... Pore of Winers can swell and become infected if prodded and picked, often making them more painful than your average blackhead.