How do we treat RA (Rheumatoid Arthritis)-Efficacy- How long does a response last? Posted byJohn May 12, 2022 Rheumatology 1.How do we treat RA (Rheumatoid Arthritis) ? 2. Efficacy- How long does a response last? 3. What does it take to create a long-term remission? 4.Does RA originate in the lungs and other mucosal sites?