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New York, NY
A 35-year-old female 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?

1 doctor answer1 doctor weighed in
Dr. Charles Gordon
Specializes in Adolescent Medicine
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.
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Last updated Jun 18, 2018


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