Thanks for asking the query,
If the abscess
of the infected tooth need to be drained compltely followed disinfection of the canals which is sealed and devitalised.
are due to the antibiotics and analgesics prescribed to you.
If the medications are not suiting you, I would suggest you to visit the concerned Dentist
and get the medications changed.
Maintain a good oral hygiene
, use antiseptic mouthwash gargles twice daily.
Take lukewarm saline gargles 3-4 times a day.
Hope this helps out.