hi, thank-you for providing the brief history of you. A thorough musculoskeletal assessment is advised. As the pain is in the medial side of the ankle, it cannot be arthirits as per my knowledge. Since you are on Anti-inflammatory drug and the pain is still persisting , than it might be related to the ligament injury at the ankle or may be a plantar fasciitis. By a thorough musculoskeletal assessment the rest can be determined. Also, undergoing physical therapy for the same will help you reduce pain and inflammation. By Therapeutic ultrasound therapy and TENS therapy the inflammation and pain will subside. Later you will be taught exercises for strengthening the muscles of the foot, and leg region. If you are having issue with your foot wear it needs to be checked once. Following the thorough assessment of the gait mechanism it can be understood further what could be possible secondary cause for the pain levels to aggrevate. In my clinical practice, I have found early results of reduced pain and inflammation with physical therapy. I recommend you the same. Regards Jay Indravadan Patel