The authors provide a review, description and synthesis of the diverse classes of psoriasis and the treatments which have been developed, from the most common ones to the most recent ones. The authors describe the most frequent nursing treatments. Bearing in mind the chronic nature of this disease, its evolution by outbreaks and the physical as well as psychological effects psoriasis has on its sufferers, the role of nurses is essential to help patients adapt to and develop some degree of independence while suffering from psoriasis.