text: Treatment for psoriasis can be divided into 3 basic categories: \n1. topical treatment - Anthralin, Calcipotriene, Salicylic acid, Tazarotene \n2. phototherapy ( artificial ultraviolet light)this is used for people with moderate to severe psoriasis who are not responding to topical treatment \n3. systemic medications/ injection. These are use for pustular psoriasis - Oral retinoids, Biologics, Cyclosporine. http://www.webMD.com