Editing Acne (section)

===Differential diagnosis===
Many skin conditions can mimic acne vulgaris, and these are collectively known as [[acneiform eruptions]].<ref name="Dessinioti2014B"/> Such conditions include [[angiofibroma]]s, [[epidermal cyst]]s, [[flat wart]]s, [[folliculitis]], [[keratosis pilaris]], [[milia]], [[perioral dermatitis]], and [[rosacea]], among others.<ref name=BMJ2013/><ref>{{cite journal | vauthors = Del Rosso JQ, Silverberg N, Zeichner JA | title = When Acne is Not Acne | journal = Dermatologic Clinics | volume = 34 | issue = 2 | pages = 225–8 | date = April 2016 | pmid = 27015783 | doi = 10.1016/j.det.2015.12.002 | url = https://touroscholar.touro.edu/tuncom_pubs/13 | type = Review | access-date = 11 July 2019 | archive-date = 27 August 2021 | archive-url = https://web.archive.org/web/20210827203258/https://touroscholar.touro.edu/tuncom_pubs/13/ | url-status = live }}</ref> Age is one factor that may help distinguish between these disorders. Skin disorders such as perioral dermatitis and keratosis pilaris can appear similar to acne but tend to occur more frequently in childhood. Rosacea tends to occur more frequently in older adults.<ref name=BMJ2013/> Facial redness triggered by heat or the consumption of alcohol or spicy food is also more suggestive of rosacea.<ref name=Archer2012>{{cite journal | vauthors = Archer CB, Cohen SN, Baron SE | title = Guidance on the diagnosis and clinical management of acne | journal = Clinical and Experimental Dermatology | volume = 37 Suppl 1 | issue = Supplement 1 | pages = 1–6 | date = May 2012 | pmid = 22486762 | doi = 10.1111/j.1365-2230.2012.04335.x | s2cid = 33276273 | type = Review }}</ref> The presence of comedones helps health professionals differentiate acne from skin disorders that are similar in appearance.<ref name="Titus2012"/> [[Chloracne]] and [[occupational acne]] due to exposure to certain chemicals & industrial compounds, may look very similar to acne vulgaris.<ref>{{cite book|veditors=Kanerva L, Elsner P, Wahlberg JH, Maibach HI |title=Handbook of Occupational Dermatology|date=2013|publisher=Springer Science & Business Media|isbn=978-3-662-07677-4|page=231|url=https://books.google.com/books?id=0DzvCAAAQBAJ&pg=PA231 |url-status=live|archive-url=https://web.archive.org/web/20170906210844/https://books.google.com/books?id=0DzvCAAAQBAJ&pg=PA231|archive-date=6 September 2017}}</ref>