Hello, Thanks for your query. I would say that sore throat which you are having is due to the injury, caused inflammation of the throat. I will advise that wind pipe is very sensitive and can easily injured with even a slight impact. I will advise to see your physician for complete evaluation & to make sure every thing fine. You should use anti-septic mouth wash in order to prevent any infection. As you have difficulty in breathing then rush to ER without any delay. In my opinion, going to see physician for examination to rule out any internal injury to the throat. Take hot liquids & soft diet. I do hope that you have found something helpful and I will be glad to answer any further query. Take care