An Observational Study Investigating the Treatment Satisfaction of Atopic Dermatitis Patients Who Have Switched to Ointment (W/O Emulsion) Formulation of Very Strong Class Topical Corticosteroids

Inclusion Criteria: * Female and male patients with a diagnosis of atopic dermatitis who are treated with Fatty Ointment Potency Class II (Very strong class) TCs * Patients who are scheduled to change the formulation of the Potency Class II TC from Fatty Ointment to Ointment (Water in Oil; Water per Oil emulsion) as per investigator's routine treatment practice * Patients who are aged over 20 * Patients who are able to understand and sign a written informed consent Exclusion Criteria: -Patients participating in an investigational program with interventions outside of routine clinical practice * Patients with any contraindication to TCs * Patients who are regarded as ineligible by the investigator * Patients who are pregnant or breastfeeding * For Period 2 (Spring-Summer), patients enrolled in the Period 1