I needed to have dental work done and I was given a shot to numb me. It numbed the back of my mouth but not the area that needed the work done. I ended up receiving 6 shots before they called it quits. They numbed my ear, cheek, jaw, and even affected my eye, but not my lip and tongue. They made me feel as if it was something I did, like changed my medication or something. I have been going to dentists for over 50 years and have never had this problem. It seemed to me that the dentist was not placing the needle in the correct spot. What would be your thought on this? My mouth is so sore that I can't hardly eat.