Thanks for aksing the query,
An infected tooth can be root canal
treated to save it permanently,
In this procedure the canals are divitalised, disinfected and sealed to the apex . This is followed by prosthetic crown placement.
Antibiotics and analgesic
will give temporary relief,
I would suggest you to visit a Dentist
get clinical evaluation done , take an x-ray which will give the periapical condition of the tooth depending upon which the tooth will be root canal treated or extracted.
Hope this helps out.