Experiencing pain, swelling or bruising after knee replacement surgery is normal, according to Healthline. To ease post surgery pain, patients are given a high-strength pain medication through intravenous injections directly after surgery occurs.
For several weeks after knee replacement surgery, patients are advised to take oral pain medication. Examples of these are prescription-strength, non-steroidal anti-inflammatory drugs, such as naproxen or ibuprofen, states Healthline. In cases where unbearable pain persists, physicians may prescribe more powerful pain medications, such as oxycodone or tramadol. Intermittent pain may occur even weeks after surgery. Massages, exercise and over-the-counter pain medications are all possible treatments for intermittent pain.