Acne is what we commonly refer to as acne pimples. Acne is a skin condition characterized by Whiteheads and or blackheads (mild acne). Pimples together with whiteheads and/or blackheads (moderate acne). Deep, inflamed painful swellings under the skin together with papules and pustules (severe acne) . What causes acne? Acne occurs when: *A hair follicle [...]