Will a doctor prescribe pain meds for canker sore on uvula?

Some may: Some doctors may prescribe a pain med for you if the canker sore is extremely large. A medicated rinse containing a mixture of a local anesthetic and other medications is often prescribed to numb the oral cavity and may provide significant relief for you.

Usually NSAIDS work: I routinely prescribe nsaids to control pain from canker sores during the 3-5 days that they are uncomfortable. In rare cases, called "major aphthae" i will prescribe a short course of oral corticosteroid--especially if the lesion/s interfere with swallowing or speech. The uvula is part of the palate and can be very uncomfortable. If Ibuprofen doesn't control pain, call your dentist for help. G/l!