If it is paining that means the time of filling is over and the decay has progressed deep inside , consult a nearby dentist , he will examine and I think it might go for RCT and your tooth can be saved otherwise if u leave it for a long time the varied progress and tooth cannot be saved and finally it may go for extraction , I think this is the right time to visit nearby dentist and have a checkup , pain does not subside by medication, necessary treatment has to be done
Next Steps
Need to visit dentist
Health Tips
Brush twice a day , avoid sticky foods