Acne is a common skin condition, which occurs when sebum, or the body's natural oil, combines with bacteria within a clogged pore. Pimples erupt in response to white blood cells attacking the site of infection, creating pus indicative of whiteheads. Many commercial acne treatments contain harsh ingredients that damage skin cells, leaving the skin raw, and contributing to scarring and persistent flare-ups. Natural spot treatments may help to reduce inflammation associated with acne and eliminate embarrassing blemishes without chemicals. Here are ten homemade acne spot treatments: