Because of the local anesthesia, your mouth will be numb for 2-4 hours following a root canal procedure, though most patients return to work or school the same day. The best way to recover from a root canal is to treat any sensitivity or discomfort with over-the-counter pain medications like naproxen or ibuprofen and to avoid eating anything until the numbness is entirely gone to prevent damaging the newly-repaired tooth without knowing it. Continue with good oral care, including brushing and flossing; attend all follow-up appointments; and keep regular bi-annual cleaning and exam appointments.