Background: Psoriasis is a chronic and relapsing inflammatory disease of the skin, characterized by the presence of well-defined erythematous plaque covered by silvery-white scales. Methotrexate is a folic acid antimetabolic for psoriasis therapy and given systemically so unexpected effects can occur. Purpose: To evaluate the side effects of methotrexate as http://hectorjfyri.tinyblogging.com/Ajudar-Os-outros-perceber-as-vantagens-da-psoriase-46924421