I fell two weeks ago and was diagnosed with a large contusion right below my left kneecap. It actually looked like a second larger kneecap. I iced it consistently for four days and took 800mg of ibuprofen 3 times daily. This did help the swelling to go down significantly. However, on the fifth day, one week ago, the swelling came back up and within the past 3 days it has become more swollen, feverish, and more painful. Is this normal or do I need to seek further treatment?