Teen acne is a problem of male hormones (testosterone) stimulating oils, resulting in over growth of bacteria, irritation of pores and development of plugs (blackheads). Then the buildup of trapped oils and bacteria deeper in the pores, results in inflammation and destruction of tissue and scars.
Treatments involve; use of non-irritant products, contraceptive pill, peels, topical and oral antibiotics and the vitamin A product known as Isotretinoin (oratane/roaccutane).
Seeking early advice from your general practitioner is advised and if not seeing significant improvement within 12 weeks then seeking help from a dermatologist.
Inflammation should be removed prior to seeking help with scars. Long term use of Roaccutane can also result in scar improvement.
Treatment of scars is very individual. Most scar treatment today is approached with the use of lasers, needling devices or surgery.