Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that due to infection in the
root canal treated tooth there is pus formation below the root tips of the tooth forming a
DENTAL ABSCESS which at times perforates the bone and gets accumulated in the soft tissues leading to appearrence as a swelling..
The swelling that you are experiencing is not a normal occurrence and is due to dental abscess formation..
You should immediately get the tooth extracted and the pus will get drained and then continue with Broad spectrum antibiotics like
Augmentin 625 mg three times a day and anti inflammatory painkillers like
Ibuprofen 4OO mg three times a day for 5 days so that the infection completely resolves..
It should be taken care of as if not treated on time can lead to
Cellulitis and Facial space infections..
Hope this information helps..
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Thanks and regards..
Dr.Honey Nandwani Arora..