How does histamine, a chemical that is released locally during allergic reactions, cause difficulty in breathing?

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asked Nov 17, 2019 23.2k views

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How does histamine, a chemical that is released locally during allergic reactions, cause difficulty in breathing?

Biology
high-school

Johneric asked

by Johneric

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histamine causes contraction of the smooth muscles and hence obstruction of airways which causes shortness of breath.

Thebreiflabb answered Nov 23, 2019

by Thebreiflabb

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