Psoriasis is a condition in which skin cells build up fast and form scales and dry, itchy plaques. Psoriasis is thought to be an immune system problem, but it has triggering factors like cold, dryness of skin, infection, stress and sometimes also heredity. Our aim of psoriasis treatment is to stop skin cells from growing fast and to remove scales. Treatment options include creams and ointments(topical therapy), light therapy(phototherapy), oral and injectable medication. There might be need to combine one or more form of therapy to treat various types of psoriasis.