What Is It? Dermatitis is a skin inflammation. Eczema is the
most common type of dermatitis. Eczema first appears as an
episode of itching and redness of the skin. You also may have
tiny bumps or blisters. When eczema develops into a long-term
condition, it is called chronic eczema. This leads to:
Thickening of the skin There are many types of eczema. The type
depends on the cause, shape and location of the rash. Most
eczemas are related to allergies or to contact with irritating
substances. Some are associated with fluid retention in the
legs. Following are types of eczema: Atopic eczema appears early
in life, usually by 18 months. In babies, atopic eczema
primarily affects the: Atopic eczema in older children,
teenagers and adults usually involves the: The second type of
contact dermatitis is allergic contact dermatitis. This is an
allergic reaction in the skin. This type occurs in people who
have an allergy to a specific substance. The most common
allergens are poison ivy, poison oak and poison sumac. Othe