I had a temporary crown put on until my root canal is done. had my root canal done 1 month ago. All was good for 2 days then from the back molar which was the tooth work on to the center of my chin went numb, I went through 2 rounds of antibotics, I am still numb and my chin has intensed itching, I was told that SOMETIMES THE NUMBNESS HAPPEN BUT IT DOESN’T NORMALLY ITCH.And I don’t need my crown put on until this goes away which may take months. Am I that unnormal?