The causes of toothache is pulp exposure due to caries or pocket formation. In both condition root canal is the treatment plan . But when the root is pocket then first cured the gums status and then cured the root canal.
Next Steps
now you go to dentist and proper examination with the help of X-ray.
Health Tips
please lie down opposite side of face, it will give you relief in pain.if required then take analgesic (Ketorol-DT 2tab dispers in water and drink it).