Hi, I had gone through your question and understand your concerns. You haven t mentioned your daughter s age, is she is overweight? Swelling is often more apparent in the lower areas of the body because of gravity. As per your information, yes fibular fracture can be one of the cause, or any changes in the activity, standing or sitting for long periods,being overweight,few medications, any injury affecting the foot,leg,or ankle results in increased blood flow to the area presents as swelling. No need to worry much, I will suggest to elevate the legs while lying down. placing a pillow under the legs will make it more comfortable.Use an ice pack wrapped in a towel (don’t use in direct contact with the skin) for up to 20 minutes, reapply if necessary after a 30 minute break. Stay active and focus on stretching and moving the legs, reduce salt intake. Avoid wearing garters and other types of restrictive clothing around your thighs. Maintain a healthy body weight. Wear support stockings or compression socks. Stand up or move around at least once every hour, especially if you’re sitting or standing still for long periods of time. If you can t see any difference, contact to your primary doctor. Hope this answers your question. If you have additional questions or follow up questions then please do not hesitate in writing to us and voting. I will be happy to answer your questions.