6 doctors weighed in:
When my skin is scratched by anything, it turns red and welts up. What can I do or take to prevent this?
6 doctors weighed in

David Miller
Family Medicine
5 doctors agree
In brief: Dermatographia
It sounds like you may have a condition known as dermatographia (literally "skin-writing").
In this condition, any little scratch can cause a local allergic reaction, which is the red welt you are seeing. If this is correct, it is often treated with antihistamines or topical steroids. You should be evaluated by a dermatologist or allergist.

In brief: Dermatographia
It sounds like you may have a condition known as dermatographia (literally "skin-writing").
In this condition, any little scratch can cause a local allergic reaction, which is the red welt you are seeing. If this is correct, it is often treated with antihistamines or topical steroids. You should be evaluated by a dermatologist or allergist.
David Miller
David Miller
Answer assisted by David Miller, Medical Student
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