I went to the dentist because of a broken crown. I got two shots of Novocain and had shaking in my hands, a quick pain up to my eye. She said she may have come very close to the nerve. Those symptoms stopped bit in about 15 minutes I started sneezing uncontrollably. 23 times in the short time I was sitting up. It stopped when I reclined in the chair again. Now I have a severe runny nose. Why? I have never had a reaction like this before.