In September the same symptoms started again, and another dentist said it was the
tooth that I had root canal in 5 years ago had an
infection and gave me penicillin, advising to perform the operation again. The pain subsided, but I did not follow the course of antibiotics properly. Three weeks later I went back to Bulgaria and saw two different dentists who both told me the route canal was perfect, and nothing else is visible on the X ray.