Your current medications contain overlapping active ingredients, specifically paracetamol and anti-inflammatory pain relievers. Taking them together increases the risk of side effects and should be reviewed immediately. Because you have severe swelling and cannot bear weight despite these medications, you need an urgent medical evaluation. These symptoms could point to an acute joint issue, a severe ligament injury, or a blood clot, which requires specific treatment rather than just pain management. Please rest, keep your leg elevated, and consult an orthopaedic specialist or visit an emergency room today for imaging, such as an X-ray or ultrasound, to safely diagnose and treat your condition.