Get it checked from your dentist.. There is no package for just 2 things (check-up and single tooth treatment).. You can get it treated at the lowest price at any Govt. Hospital or any local Trust or similar institutions nearby..
Next Steps
Get a check up done since it is bothering you since a week.. the more you delay, the higher would be the cost of treatment..
Health Tips
For emergency pain relief, any pain killer from a chemist will do..