Hello.... I will not comment on your dentist prescription!!!!! But For emergency pain relief you can take...
ketorol-DT 1tab in half glass water.... Put one tablet in one glass water it will disperse in 5 minutes.... and then take it .... pain will subside in 15 minutes!!!!
Next Steps
If your dentist has not done then ask for disocclusion of the tooth!!!!!
Health Tips
you take 2 tabs extra .... if pain will be in the night then you can take 1 tab in the night also!!!