Atopic dermatitis:
Contact dermatitis:
Typical types of contact dermatitis brought on by allergic reactions tend to be poison oak or poison ivy (exact same chemical substance, different plant) and also allergic reactions to costume jewelry that is made with a metal that contains nickel. Some people will get red skin spots, itchy bumps or patches over the body, such as on the chest and back.
Most of the time, allergic contact dermatitis impacts simply those areas of the skin handled by whatever material brings about the allergic reaction, rather than atopic dermatitis, which is often prevalent simply because, while explained above, it’s not at all an allergy to some particular element.