ACNE spot resulting from dead skin cells build-up, and grease that block the pores or hair follicles, typically on the face, upper arms, upper back and chest. It is not known to be contagious and has nothing to do with not being cleaned.
Some probably cause like Hormonal changes, such as those related to puberty, menstruation and pregnancy, can contribute to acne. Some medicines will also make it worse, including some contraceptive pills and steroids.
Most people would experience acne, typically as young adults. Nevertheless, girls tend to develop it slightly earlier than boys - which around the ages of 14-17 compared to 16-19 years for boy. Also to note that Acne can too, occur later in life. Studies shows that ~5% of women and ~1% of men aged between 25-40 could continue to have acne after adolescence
Nevertheless, for those who experience mild acne, it does not really need treating, as each inflamed spot will eventually be healed itself. Having a healthy diet, and consuming plenty of water will also help keep the skin healthy.
Keeping spot-prone areas clean by washing the affected area twice daily with an unperfumed cleanser can help. However, excessive washing and scrubbing of the skin will not help and may make the inflammation worse
For more severe acne, it may need treatment. The aim for such treatment is to clear the spots and prevent scarring. Treatments work by either unblocking blocked pores, reducing the amount of grease or sebum made by the skin, reducing the inflammation or fighting the bacterium that infects the lesions.
Creams, gels and lotions that can be applied to the skin are available to buy at pharmacies without a prescription. There are several more potent oral tablets that can be prescribed by a doctor if the acne persists. Latest clinical treatment like Laser therapy, chemical peels, dermabrasion and other treatments have been suggested for acne scarring.