While leg pain is a common occurrence after an injury, pain can also occur because of medical conditions or nontraumatic reasons. Pain in the legs may be due to injury or inflammation of any of the structures that are found in the leg, including bones, joints, muscles, tendons, ligaments, blood vessels, nerves, and skin. Inflammation of tissues is usually the cause of pain. Pain can also radiate from other parts of the body and be felt in the leg. Back ailments can cause pain and numbness of the leg. Abdominal aorta and iliac artery aneurysms can also present with leg pain. blood clot in the large veins located in the abdomen are a further cause of leg symptoms. The treatment of leg pain depends upon the diagnosis. Once the reason for the pain is established, treatment is focused on both pain control and controlling the underlying problem to prevent or lessen future occurrences I understand your concern. I advice you to take Rest. Refraining from sports and other activities for 24 hours or longer will give the joint time to repair and recover. Applying a cold compress to the knee for 20 minutes 3 to 4 times each day can decrease swelling and promote healing. Ice should not be applied directly to the skin. Use Compression technique. Wrapping the affected joint in an elastic bandage (e.g. Ace™ bandage) may help limit or reduce swelling. Elevation. Sitting down with the leg elevated on a stool or lying down with the foot elevated on a pillow can help reduce blood flow to the area, thereby reducing inflammation. You did not mention that you have fever or fatigue, chills. If you are not able to bear weight on legs, or you have a fever of 100.4 or higher and your Swelling has been present for 3 or more days, I suggest you to visit physician. A doctor will examine your s leg and ask you several questions. This physical examination and your interview may provide enough information to make an accurate diagnosis. If more information is needed, the doctor may recommend further imaging (e.g., X-ray) or arthrocentesis, which can yield additional clues. As we have to be always on safe side and patient safety is our top priority.