Thanks for posting your query,
if you are experiencing pain after filling of teeth then you should get an x-ray done to see if there is any perforation or pulp exposure
you can rinse your mouth with warm saline
maintain good oral hygiene
brush your teeth with soft bristle brush and floss
Treatment of affected teeth will involve either root canal
therapy or tooth removal
If pus is present, it needs to be drained, the cause eliminated, and host defences augmented with antibiotics.
Appropriate antibiotics would include a penicillin or a `first generation' cephalosporin
, combined with metronidazole
in more severe cases.
I hope this information has been both informative and helpful