The Visit 2 will be occurred before the 1st dose of FP 0.05% cream. At Visit 2, investigator needs to evaluate Eczema Area, AD Severity and Visual Skin Assessment. Vital signs will be measured and recorded. Subjects need to complete the questionnaire of QoL under the investigator's instruction. Investigator must confirm subjects' eligibility for ACUTE phase after all of inclusion and exclusion criteria have been checked.