The key is to find controlling meds that keep your immune system under control...not take pain meds.
What are you taking is an antiinflammatory med not one that will control the immune system which is what is probably causing the pain. You are just treating the symptoms. Suggest you get a second opinion from a rheumy experienced in treating lupus.
MCTD (lupus, scleroderma, polymyositis). Diagnosed 2005. Kidney, liver, GI tract, dysphagia, raynauds, Barretts esophagus, quadriplegic in 2005. Recovered and now active in skiing, tai, chi, hiking, golf. Meds: prednisone 2.5mg, imuran 25mg, amlodipine, benazapril, omeprazole, potassium, folic acid, vitamins, maxide and various supplements and vitamins.
Remain optimistic and you can overcome the odds.