Sprained ankle 3 yrs ago. ballet dancer & had pain since. there is an os trigonum but doctor says pain is not due to it. but what else could it be?

Brace and Phys Thera: An ankle sprain is an injury to your ligaments, not bones. It needs to be taken seriously to allow the ligaments to heal at a normal length. If you keep injuring it, your ankle may become unstable and require surgery to fix. An ankle brace or taping will allow some activity. Getting a home program of exercises will also speed the recovery. Ankle sprains can vary widely in severity and recover.