I had a root canal removed although there was no pain; it was not bothering me at all. I just felt it should come out. When Dr. Rehme removed the root canal there was a hole in my sinuses. The puss & infection from the root canal had been draining into my sinuses. I always thought I had an allergy. Since the removal of the root canal I no longer have the nasal drainage. The root canal was done 10-15 years ago.