Tooth Abscess Emergency: When to Go to the ER Immediately

A dental abscess can become life-threatening. Go to the ER immediately if you have:

• High fever (≥101°F / 38.3°C)
• Facial swelling (especially spreading to eye, neck, or floor of mouth)
• Difficulty breathing or swallowing
• Trismus (inability to open mouth fully)
• Drooling (cannot manage saliva)
• Confusion, dizziness, tachycardia (signs of sepsis)

These indicate spreading infection (cellulitis, Ludwig's angina, mediastinitis, cavernous sinus thrombosis, sepsis) requiring IV antibiotics, surgical drainage, and airway management.

Non-Emergent but Urgent

If no red flags above, contact a dentist immediately for same-day drainage and antibiotics. Do not delay—abscesses worsen rapidly.