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A member asked:

How come we get itchy and red when we are allergic to something?

A doctor has provided 1 answer
Dr. Nayla Mumneh answered

Histamine: when an allergic reaction occurs, histamine is released that causes redness, itching and swelling of the skin

Dr Beck agreed

Answered 11/3/2014

3.6k views

Thank

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I have soft brown crusts on my nipples since over 15 years ago. I don't have any other symptoms, not pain, itchiness, secretions or redness. They get softer when i shower with hot water and sometimes i remove them but always come back.

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