Some pimples pop up overnight with little to no warning. Others make their arrival known long before they ever come to the surface by causing a painful lump. The latter is typically a big pimple ...

Cystic acne occurs very deep under the skin's ... They are tiny, harmless cysts that occur when dead skin cells get trapped under your skin, says Dr. Schlessinger. “Picking at them often has ...

While we all try to avoid pigmentation and acne, sometimes we notice ... Milia develop when oil, dead skin cells, and keratin get trapped under the skin’s surface, forming a bumpy layer.

Human botfly larvae, for example, burrow under your skin, forming a pus-filled pimple. Meanwhile, thousands of young Loa loa worms can travel throughout your body —even across your eyeball!

Next, sterilize a straight pin. Then, wipe both the pimple and pin with rubbing alcohol. This kills outside bacteria that might get under the skin and could worsen the infection. Now, it's popping ...

Pimples can be embarrassing ... sweat, and dead skin cells. This creates an infectious breeding ground for bacteria which get trapped in the follicle and have no way to escape.