hi there, ankle joint is a very complex joint with lots of tendon and ligament attatchments and so any one of them could be strained or injured. First of all you should visit an ER and get a X-ray or a ortho consultation done as you would'nt want to miss a fracture
tho' is unlikely. Ligaments take a long time to heal and so as you have rightly initiated the treatment, a painkiller, cold
compresses and crepe bandage with elevation of the limb should give you some relief. Do not try to massage
it or exercise it un-nessesarily. Keep the compression bandage on for a feew days till you are comfortable. Bone and tendon injury
take its own time to heal and you can not speed them up. Take proper rest and wait it out. Take care.