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. Author manuscript; available in PMC: 2014 Jul 1.
Published in final edited form as: Dermatol Clin. 2013 Jun 2;31(3):405–425. doi: 10.1016/j.det.2013.04.001
Infection (most notably Streptococcal infection, vaccines*)
Drugs
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    Corticosteroids

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    NSAIDs (aspirin, phenylbutazone, oxyphenbutazone)

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    Salicylates (aspirin*)

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    penicillin

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    sulfonamides

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    lithium

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    morphine

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    topical coal tar

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    pyrogallol

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    topical chrysarobin

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    potassium iodide

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    progestins

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    arsenicals

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    hydrochloroquine

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    anti-TNF agents

Pregnancy
Menstruation
Stress
Surgery
Alcohol
Sunlight, sunburn
Exertion
Seasonal variation
Birch pollen*
Milk
Pork
* denotes precipitant associated with juvenile GPP