The area around a pustule may be hard, red, and tender to the touch. Whiteheads occur when pores get clogged with sebum, which builds up and causes a white bump to appear on the skin’s surface.

Medically reviewed by Katlein Franca, MD An inner-thigh rash may be caused by a variety of factors, including friction, ...

Medically reviewed by Susan Bard, MD Fungal acne has an entirely different cause than most other types. This means that the ...

“Popping anything causes your skin to physically break apart, making it more susceptible to infection and an even bigger problems than what was there in the first place,” says Dendy ...