Dermatitis = Although the word dermatitis is used to describe many types of skin rashes, there are two common forms: atopic dermatitis and contact dermatitis. Atopic dermatitis is inherited and usually occurs first when children are infants. Contact dermatitis occurs when the skin comes in contact with something that causes an allergic reaction (allergic contact dermatitis) or injures the skin (irritant contact dermatitis.) What is dermatitis? Dermatitis is an inflammation of the skin . The word "dermatitis" is used to describe a number of different skin rashes that are caused by infections, allergies , and irritating sub...