Q. Hi i had a root canal a week ago and my dentist found 3 out the 4 nerves had died? 4 days after the root canal it started to really hurt (like under the tooth)i went back on day 7 he said it was mildly infected and he put me on amoxicllin. he said i should still come back the next day for the cerec which i did. my tooth is really sore. my question is how long providing the infection goes should i expect to eat on it because at the moment a bannana is even out of the question. many thanks