Here are ten facts you may not know about this skin disease.
o Most individuals with acne do not have excessive androgens but their sebaceous glands may be more sensitive to the actions of androgens.
o It is characterized by a variety of clinical skin lesions. These lesions may be either inflammatory or non-inflammatory papules or nodules. The non-inflammatory papules are called 'comedones' and these may be either open (blackheads) or closed (whiteheads). Closed comedones are the precursors of papules, pustules, and large inflammatory nodules.
o Propionibacterium acnes are the bacteria that cause acne. It is the breakdown of fat by these bacteria that leads to the formation of comedones.
o It is a self-limited disorder and primarily affects teenagers and young adults, although about 10 to 20% of adults may continue to experience some form of the disease.
o Most disease remains mild and does not lead to scarring but a few sufferers may develop large inflammatory cysts and nodules, which may rupture and result in significant scarring.
o Friction and trauma may rupture preexisting small comedones and trigger inflammatory acne lesions. This is commonly seen with headbands or chin straps of athletic helmets.
o Application of any form of chemical found in cosmetics, hair products or industrial compounds that are comedogenic may elicit or worsen acne.
o Steroids applied on skin or given systemically in high doses may also cause acne. Medications such as lithium, isoniazid, halogens, phenytoin, and phenobarbital may produce or worsen acne.
o Dispel some of the myths about acne- it is NOT due to lack of washing, eating sweets / chocolate, etc.
o Treatment of acne should be directed towards elimination of comedones by normalization of follicular keratinization, decreasing sebaceous gland activity, decreasing the population of Propionibacterium acnes, and decreasing inflammation.