to severe plaque psoriasis get clearer. and stay clearer. most patients who saw 90% clearer skin at 28 weeks stayed clearer through 48 weeks. tremfya® may lower your ability to fight infections and may increase your risk of infections. before treatment, your doctor should check you for infections and tuberculosis. tell your doctor if you have an infection or have symptoms such as: fever, sweats, chills, muscle aches or cough. before starting tremfya® tell your doctor if you plan to or have recently received a vaccine. tremfya®. stay clearer. janssen can help you explore cost support options.