A pimple (colloquially known as a zit or spot) is a kind of comedo resulting from excess sebum and dead skin cells getting trapped in the pores of the skin. In its aggravated state it may evolve into a pustule or papules.[1] Pimples can be treated by acne medications, antibiotics, and anti-inflammatories prescribed by a physician, or various over the counter remedies purchased at a pharmacy.