Over-frequent washing of your face, the use of harsh cleansers and excessive facial scrubbing will irritate the skin and aggravate any existing acne problem further. So will squeezing pimples or acne bumps with dirty fingernails that trap bacteria.
Another factor is acne mechanica – a condition that arises from the accumulation of sweat, and excessive friction and pressure due to the skin’s constant contact with items like telecommunication devices, headgears, tight collars and backpacks.
Dietary factors could also play a part in acne exacerbation. Some studies have shown that a high glycemic and high fat diet, excessive intake of carbohydrate-rich and dairy foods appear to activate acne sebum production.
Genetics has been identified as a major factor influencing the propensity of an individual’s skin to inflammation and scarring.
The use of the wrong kinds of skincare products and cosmetics containing dense and greasy ingredients, such as cocoa butter and mineral oils, could clog the pores and exacerbate acne production.
The use of certain medications containing corticosteroids, androgens or lithium is known to cause acne.