Editing Shiitake (section)

==Toxicity==
{{Main|Shiitake mushroom dermatitis}}

Rarely, consumption of raw or slightly cooked shiitake mushrooms may cause an [[allergic reaction]] called "shiitake dermatitis", including an [[erythematous]], micro-[[papular]], streaky [[pruritus|pruriginous]] [[rash]] that occurs all over the body including face and scalp, appearing about 24 hours after consumption, possibly worsening by [[sun exposure]] and disappearing after 3 to 21 days.<ref name="Boels 2014" /> This effect – presumably caused by the [[polysaccharide]], [[lentinan]]<ref name="Boels 2014" /> – is more common in East Asia,<ref name="Herault2010" /> but may be growing in occurrence in Europe as shiitake consumption increases.<ref name="Boels 2014" /> Thorough cooking may eliminate the [[allergenicity]].<ref name="Welbaum 2015" />