Hello, Few probable causes of your ankle pain are plantar fasciitis or inflammation of tissues in your foot, entrapment syndromes like tarsal tunnel syndrome, calcaneal bursitis, bone bruise, inflammatory joint arthritis, osteomalacia and retrocalcaneal bursitis. Please do not worry looking at the long list. The most common and probable cause of your pain is plantar fasciitis. The causes of plantar fasciitis are obesity, sudden increase in running speed or running distance, hill climbing and usage of worn out shoes for running. Treatment includes 6 weeks of consistent and daily icing, stretching, NSAID therapy, strapping and taping, and over-the-counter (OTC) orthoses. Counseling as to activity modification, as well as choice of shoe gear, is important. After 6 weeks, recalcitrant cases should be treated additionally with a night splint and, possibly, an injection, along with the initial regimen for another 6 weeks. 1) Icing daily for 15-20 min for 6 weeks consistently 2) Rest and activities modification like reducing the speed and distance of running, avoiding hilly terrains 3) NSAIDs must be used consistently for 6 weeks like Ibuprofen, Aceclofenac 4) Oral corticosteroids like methylprednisolone can be used for 6 weeks and then slowly tapered 5) If all the above primary measures fail, corticosteroid injection into the plantar fascia is indicated 6) Usage of over the counter orthoses 7) Many stretching exercises are available online for plantar fasciitis please have a look and they are very promising. If all the above methods fail, many experimental methods like autologous blood and plasma, cryopreserved human amniotic membrane, extracorporeal shockwave therapy are in trials. But plantar fasciitis is self limiting illness. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Pallavi M., Anesthesiologist