The Dermatology Life Quality Index (DLQI) will be used to assess patient quality of life. The Dermatology Life Quality Index (DLQI) total scores range from 0 to 30, with 0 corresponding to the best quality of life and 30 to the worst. The Dermatology Life Quality Index (DLQI) has well-established reliability and validity as determined in several studies. Moreover, it is frequently used in clinical trials of psoriasis.