Pain in ear can be due to lot of causes... it can be infection , I can be wax in ear causing pain or even throat infection that leads to pain radiating to ear . If not anything else , it can just be local pain to ear due to trauma . So finding the cause of the pain is most important . So maybe detailed history would help to find cause or even examination of ear itself will be necessary . Hope this helps

This can be ear infection

If it’s really serious like you described better you see a specialist in person soon

This could be otitis externa infection of ear canal