MRCP2-4750

A 65-year-old woman presents with knee pain that has been bothering her for a few years. She reports that the pain worsens as the day progresses and is alleviated by rest. Although she is not one to frequently seek medical attention, the pain has become unbearable and she desires additional treatment. She is hesitant about undergoing surgery at this time and has a history of osteoarthritis. She has only been taking paracetamol and has not attempted any other medications. What is the most suitable approach to further alleviate her pain?