DrinkofWtr, I'd take the risk and call the office. Have your questions written down, and insist that they have the doctor (or his nurse?) call you back about the pain control issue. There has to be SOMETHING you can use with your new medication. There are a lot of varieties of pain meds, both OTC and prescriptions.
As an alternative, you might ask your pharmacist about what OTC pain meds are compatible with your other meds. This could at least get you through until your next doctor appointment.
I hope you find something to help with the pain. Hugs to you!
"If you trust Google more than you trust your doctor than maybe it's time to switch doctors."