There are many different types of acne. There's the hormonal kind, which tends to pop up around menstruation ... “Deep, painful pimples and cysts should be treated by a professional to avoid ...

Medically reviewed by Mary Choy, PharmD Popping pimples can be bad for your skin, leading to inflammation, infection, ...

Causes of sebaceous cysts: These random build-ups of keratin, which looks like a pimple under the skin, pop up on areas of the body with a high volume of oil glands. How to treat sebaceous cysts ...