<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have been experiencing swelling and stiffness in my joints, especially the knee joint. Its difficult for me to move around and I feel constant pain.  <response>: Based on your symptoms, you have joint effusion. You will require medication to reduce inflammation and pain. I am prescribing Indomethacin, a nonsteroidal anti-inflammatory drug, and Chondroitin-Glucosamine, a supplement that supports joint health. 