there is no cure for psoriasis..my father is suffering it since he was 28yrs old..now he's 55..he has flakes all over his body..it looks horrible for people not used to it..but for us, his family is immune to it..by the way its not contagious..he has creams for treatment and this Methatrexate tablet helps his psoriasis in control..but no cure for this til these days...