There are many different kinds of eczema and dermatitis.
1. Contact dermatitis--an allergy, such as poison ivy. Typically, there are red bumps or blisters arranged in a line or in the areas in which contact with the substance is made.
2. Atopic dermatitis--there is scale, itching and redness that most commonly affected the front of the elbow and the back of the knees.
3. Seborrheic dermatitis.
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