Acne is one of the common skin condition affecting teenage years. Acne tends to resolve in the third decade of life but some can persist until 40 years old. The exact mechanisms of causing Acne are not fully understood. It is thought to be caused by familial tendency, exogenous and endogenous hormones, Propionibacterium acnes (acne bacteria), inflammation, distension and occlusion of hair follicles.
Flares of Acne are triggered by:
- Polycystic ovarian syndrome
- Certain medications such as steroids, hormones, anticonvulsants and etc
- Applications of occlusive comestics
- High environmental humidity
- Diet high in dairy products and high glycaemic foods
Acne most commonly affects those areas of the body that have the largest, hormonally-responsive sebaceous glands, including the face, neck, chest, upper back and upper arms. Features include open comedones (blackheads), closed comedones (whiteheads), inflammed papules and pustules. In severe Acne, scarring and postinflammatory hyperpigmentation can occur, which can be greatly distressing for patients.
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