Acne is a nightmare for many people, especially teenagers. This skin condition occurs when hair follicles get filled with oil and dead skin cells. Though acne can affect people at any age, it is commonly found among teenagers. Acne could cause whiteheads, blackheads and pimples. There are various reasons why acne occurs: hormonal changes, use of certain medications, diet, stress, bacteria, inflammation, production of excess oil.
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