<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing a lot of pain and swelling in my ankle.  <response>: It sounds like you may have sprained or strained your ankle. In order to determine the extent of the injury and the best treatment, we will need to conduct a radiographic imaging procedure, such as a plain x-ray or magnetic resonance imaging. We may also need to apply a splint or cast and recommend physical therapy exercises to help you recover. 