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A member asked:
I have like nettle rush on my body with itchiness. after scratching, it gets red, weal, and swollen. usually disappear within an hour. what's that?
A doctor has provided 1 answer
Koebner phenomena?: People who have allergies frequently when they rub their skin (with their fingernails) may get a red rash and swelling just under where they scratched themselves. You can go to an allergist to define just what you are allergic to.
Answered 6/18/2018
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