What causes acne ?
It is believed that acne runs in families. The episodes may flare up by:
- Hormonal changes occurring in menstrual periods, pregnancy, taking birth control pills and stress.
- Poor skin hygiene and prolonged and continuous dust exposure.
- Use of oily or greasy cosmetics or hair products.
- Certain drugs like steroids, testosterone, oestrogen and phenytoin.
- High level of humidity and sweating.
Common sites -