A 45-year-old member asked:
How can a nettle sting you?
1 doctor answer • 1 doctor weighed in
Psychiatry 25 years experience
Needle - like hairs: The underside of the nettles leaves and the stem both have sharp fine hairs. When you brush again it the hairs can brush off on you. They contain both acetylcholine & histamine which cause pain & itching.
5.2k viewsReviewed >2 years ago
Last updated Dec 10, 2013
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