How long should my tooth hurt after a filling. It hurts more than when I had it doneHow long should I wait to tell the dentist or see if it goes away?

Call Dentist now. You did not say how long it has been since your treatment, but pain should begin subsiding after 2 days. If not, seek immediate help. The nerve of the tooth may be damaged from the cavity, and root canal treatment may be your best option. Call Dentist now.