A member asked:

Can allergic dermatitis to hair coloring spread from nape of neck to back or legs or would it be only on scalp? could last for weeks after coloring?

A doctor has provided 1 answer
Dr. Doanh Nguyen, md, faaaai answered

Specializes in Allergy and Immunology

Dermatitis: Based on your brief description, it is hard to tell if you just have contact dermatitis to hair dye only or you also have other dermatitis like atopic dermatitis. If you have known allergic contact dermatitis to hair dye, your skin would be inflamed providing that it has enough time to be in contact with the allergen. In both cases, dermatitis last for several days or longer if not treated.

Answered 9/7/2013

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