<qa>  What is the target area evaluated for?At the baseline visit, the investigator will select a target area on the face. The target area will be evaluated for erythema redness and desquamation scaling using a 5-point scale: 0 none, 1 minimal, 2 mild, 3 moderate and 4 severe. Photography of the target area will be taken. For reference, a fixed object such as a ruler will be photographed in the same frame. In addition, the investigator will assess the overall facial lesions using an ISGA based on a 5-point scale. The subject will evaluate hisher pruritis over the past 24 hours, using a 5-point scale: 0 no itching, 1 minimal and rare itching, 2 mild itching, subject is aware of the itching only when relaxed, 3 moderate itching subject is often aware of the itching, which occasionally disturbs sleep, 4 severe and constant itching. 