For now, take a painkiller. Do warm salt water rinses 3-4 times per day.
Call up a dentist in your area and try to take an appointment. Then the respective doctor will explain the protocol that has to be followed by you while going in to the clinic.
Next Steps
if there is any swelling, you will have to start antibiotics, do get a consultation for the same.
Health Tips
keep the area clean, rinse after every meal.
Brush twice daily.
Do not apply heat/cold on the area.