atopic dermatitis contact dermatitis difference

Atopic dermatitis is the most common form of eczema. It often affects people who also have:

Asthma or hay fever
Family history of eczema, asthma, or hay fever
Defects in the skin barrier, allowing moisture out and germs in
Atopic dermatitis usually begins during infancy or childhood. But it can strike people at any age.

There are two types of contact dermatitis:

Irritant contact dermatitis
Allergic contact dermatitis
These types of eczema can develop after a substance damages the skin. These include chemicals and frequent hand washing.