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A member asked:
Prickly itchy rash shows raised bumps, when scratch swell into raised strips. lasts few mins. affects diff area of body/hair & diff time. no reason.
A doctor has provided 1 answer
Dermatographism: If your rash is a flat one and scratching it causing raised strip, you have dermatographism meaning that your skin is oversensitive. If it is bothersome, taking an otc antihistamine such as zyrtec (cetirizine) will likely control it. Else it is not a major health issue. As always, mention this to your doctor when you see him/her next time.
Answered 9/2/2018
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