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Definition: It is an inflammatory disease of the pilosebaceous follicle that results in oily skin and the appearance of pimples on the face. It affects both adolescents and adults. This skin problem is due to an excessive secretion of sebum by the sebaceous glands and to a dysfunction in the synthesis of keratin, which obstruct the pores of the skin, thus favoring the appearance of comedones (blackheads and whiteheads). Whiteheads can become inflamed by bacteria (Propionibacterium acnes) and develop into non-purulent red pimples (papules), purulent pimples (pustules) or larger pimples that are usually painful and deeply embedded in the skin (nodules). Acne typically appears on the face, neck, back, shoulders and chest.
Internal and external causes: Genetic factors, hormonal changes (puberty, menstruation, pregnancy), repeated rubbing of tight clothing, heavy sweating, certain medications or anabolic steroids, exposure to chemicals.
How to reduce or eliminate: Depending on the type of acne, its severity and other criteria (duration, age, etc.), a local, oral or combined acne treatment is indicated. Some active ingredients have been shown to be effective against acne (azelaic acid, glycolic acid, salicylic acid or retinoids). For all types of acne cases, it is important to consult a dermatologist.
Preventative steps to take: Remove your makeup before going to bed; gently clean your skin once or twice a day with a mild cleanser; avoid touching your face; protect yourself from UV rays with a non-comedogenic sunscreen; do not squeeze your pimples to avoid superinfections and scars; clean your cosmetic brushes or applicators regularly; shower after sports; wear loose-fitting clothing; use alcohol-free shaving and aftershave products.

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