The diagnosis of Atopic dermatitis is largely done on the basis of history and physical examination. For identifying a skin lesion as Atopic dermatitis at least 3 major features and 3 minor features should be present.
Itching (that is severe at times)
Chronic and recurring (repeatedly occurring symptoms)
Typical distribution of the Atopic dermatitis rash:
Infants and young children - Scalp, face (chin and cheeks) and extensor surfaces of extremities.
Older children and adults - Flexor surface of elbow and knee, neck, wrist and ankles.
Past/Family history of Atopic diseases like asthma, rhinitis, etc
Dryness of Skin
Thickening of palm skin with an increase in lines