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A common cause of dermatitis is contact with something that irritates the skin or triggers an allergic reaction, such as poison ivy, perfume, lotion, and jewelry that contain nickel, Shahrivar 31, 1400 AP Contact dermatitis, a type of eczema, is a skin reaction that occurs when it comes into contact with substances to which your body is sensitive. According to the National Eczema Association, the word “dermatitis” is used to describe any rash, but contact dermatitis differs from atopic dermatitis in that it develops as a result of something touching the skin rather than being genetic. Contact dermatitis is a red, itchy rash caused by direct contact with a substance or an allergic reaction to it. The rash is not contagious or life-threatening, but it can be very uncomfortable.
Irritant contact dermatitis may be caused by frequent exposure to a weak irritant, such as soap or detergent. It can also develop if you have been in contact with a stronger irritant for a short time. Irritants can damage the skin barrier by removing oils and moisture. If the damage continues before the skin has time to repair, this can lead to irritating contact dermatitis.
Sometimes the allergen that causes the allergic reaction of contact dermatitis is never identified. Usually, you won’t have a rash the first time your skin touches something you’re allergic to. But that touch sensitizes your skin and you might have a reaction next time. If you have an allergic rash, chances are you’ve touched that trigger before and just didn’t know it.
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