My wife while going for walking, fell down and got a injury above the knee. When I consulted a doctor, she was given tablet and the discoloration is come to normal over a period of 2 weeks time. It is almost one month over now, the swelling over the knee, due to blood clot to the size of cricket ball, is not come down. 2 times doctor had done aspiration, even after that still it persists. What is the right medication for this to become normal. We were told that there is no ligament / bone injury. Only the blood clot and even after 2 times aspiration, doesn't come to normal. Pl suggest.