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| === History of some acne treatments ===
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| The history of acne reaches back to the dawn of recorded history. In Ancient Egypt, it is recorded that several pharaohs were acne sufferers. From Ancient Greece comes the English word 'acne' (meaning 'point' or 'peak'). Acne treatments are also of considerable antiquity:
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| * Ancient Rome: bathing in hot, and often sulfurous, mineral water was one of the few available acne treatments. One of the earliest texts to mention skin problems is ''De Medicina'' by the Roman writer [[Aulus Cornelius Celsus|Celsus]].
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| * 1800s: Nineteenth century dermatologists used sulphur in the treatment of acne. It was believed to dry the skin.
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| * 1920s: [[Benzoyl Peroxide]] is used
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| * 1930s: [[Laxative]]s were used as a cure for what were known as 'chastity pimples'. Radiation also was used.
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| * 1950s: When antibiotics became available, it was discovered that they had beneficial effects on acne. They were taken orally to begin with. Much of the benefit was not from killing bacteria but from the anti-inflammatory effects of tetracycline and its relatives. Topical antibiotics became available later.
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| * 1970s: [[Tretinoin]] (original Trade Name Retin A) was found effective for acne.<ref name="pmid4265099">{{cite journal |author= |title=Tretinoin (retinoic acid) in acne |journal=The Medical letter on drugs and therapeutics |volume=15 |issue=1 |pages=3 |year=1973 |pmid=4265099 |doi=}}</ref> This preceded the development of oral [[isotretinoin]] (sold as Accutane and Roaccutane) in 1980.<ref name="pmid6107678">{{cite journal |author=Jones H, Blanc D, Cunliffe WJ |title=13-cis retinoic acid and acne |journal=Lancet |volume=2 |issue=8203 |pages=1048–9 |year=1980 |pmid=6107678 |doi=}}</ref>
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| * 1980s: Accutane is introduced in America
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| * 1990s: Laser treatment introduced
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| * 2000s: Blue/red light therapy
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