This is an open label, investigator-blinded, cross over, prospective, single center study of subjects with plaque psoriasis. Taclonex® (calcipotriene 0.005% and betamethasone dipropionate 0.064%) Ointment and Taclonex Scalp® (calcipotriene 0.005% and betamethasone dipropionate 0.064%) Topical Suspension will each be applied topically once daily.