Hi, I recently noticed a soft lump just beside a tooth on which I had a root canal performed years back. The lump is not painful but I noticed that sometimes the swelling reduces and blood comes out. The next day it swells again. I noticed some small puss right on the top of it too.
Thanks for using Chat Doctor. Read your query. The signs and symptoms you have presented suggests reinfection in the root canal treated tooth. I would advise you to visit your Endodontist and get an X-ray done to evaluate the status of the abscess. Go ahead with the re-treatment of the tooth if there are favorable conditions. Antibiotics may be required with prescription from the dentist. Do salt water gargling. Hope this was useful. Thanks and regards.