Here’s a general way to think about it:
Get emergency medical care now (911 or ER) if there is swelling spreading toward the eye or neck, trouble swallowing or breathing, a high fever, or a serious injury.
Try to reach a dentist the same day for severe pain that does not let you sleep, swelling in the gum or face, a knocked-out adult tooth, or a bad taste with pus, which can signal infection.
It may be able to wait for the next business day if the pain is mild, comes and goes, or is only sensitivity to hot or cold, as long as it isn’t getting worse.
Ways to find care after hours: call your regular office (many list an emergency number), check our dentists near me directory for offices with extended hours, or ask your insurer’s member line.
Meanwhile: rinse gently with warm water, avoid chewing on that side, and avoid very hot, cold or sugary foods. Ask a pharmacist about over-the-counter pain relief that is safe for you, and never put aspirin directly on the gum. Our dental emergency checker can help you judge urgency.
General education only, not a diagnosis or treatment advice. Please see a licensed dentist about your own situation. For a medical emergency (trouble breathing or swallowing, heavy bleeding, a major injury or rapidly spreading swelling), call 911 or go to the nearest ER.