Here are several things, known to help contribute to an acne outbreak:

  • Family history

  • Hormonal activity, such as menstrual cycles and puberty

  • Stress, through increased output of hormones from the adrenal (stress) glands.

  • Hyperactive sebaceous glands, secondary to the three hormone sources above.

  • Accumulation of dead skin cells.

  • Bacteria in the pores, to which the body becomes 'allergic'.

  • Skin irritation or scratching of any sort will activate inflammation.

  • Use of anabolic steroids.

  • Any medication containing halogens (iodides, chlorides, bromides), lithium, barbiturates, or androgens.

  • Exposure to high levels of chlorine compounds, particularly chlorinated dioxins, can cause severe, long-lasting acne, known as Chloracne.

    And as mentioned on the home page, there are a lot of myths about what causes acne, but those are either untrue or only half way correct. There are also a lot of myths about ways to treat acne.