EASI is an acronym for "eczema area and severity index". It is a scoring system used to assess the severity of atopic dermatitis. In this system, the skin is divided into 4 areas (head and neck, upper limbs, torso, lower limbs). On each of the mentioned 4 areas, we assess redness, swelling, scratches, and lichenification - chronic thickening of the skin. From the sum of the points from all four areas, we can determine the severity of atopic dermatitis.