my jaw hinge has been hurting for 3 weeks, what to do?

In my first ever fight I got nonstop hooks to my jaw and temple. I won because of stoppage. After the fight my jaw hurt like hell. The medic gave a cold compress to relax it.I could not open my jaw fully, and I thought it was a dislocated jaw. Fast-forward to a few days I used cold and hot compress to recover it made better but not fully. I stopped treating it with cold/hot compresses. I thought it would go away by itself. but now it's been three weeks it's better now but it's also worse. I can now bite and open with full force and minimal pain. But today whenever I open my jaw, My ear feels like its blocked.