I'm having to get knee replacemenst done and i have let one of them go way to long it hurts constantly he did not offer me one thing for pain , why?

All pain medications: — prescription and nonprescription — have risks and potential side effects. Keep in mind that medication isn't the only treatment for arthritis pain. Mild to moderate arthritis pain may be relieved with a combination of self-care measures and lifestyle changes: weight loss, exercise, heat or cold therapy, and physical therapy. It would be useful to FIRST try this combined approach before meds.