Medically reviewed by William Truswell, MD Key Takeaways Different types of pimples can form on your skin, such as papules, pustules, and cysts. Over-the-counter treatments with ingredients like ...

Dear Dr. Roach: How do pimples form? Why do they itch? How can I remove them? — B.B. Answer: Acne is caused by plugged hair follicles, which are associated with sebaceous (oil-producing) glands. These ...