What should you know about odontogenic facial cellulitis?

A cavity, infected tooth, gum infection, or dental procedure can allow bacteria to move beyond the tooth into the cheek, jaw, or spaces under the tongue. Facial cellulitis may produce warmth, redness, tenderness, swelling, toothache, bad taste, fever, or difficulty opening the mouth. The skin appearance does not show how deep the infection is.

A clinician will assess the mouth, teeth, face, neck, swallowing, and breathing. Imaging or hospital assessment may be needed when swelling is deep or spreading. Diabetes and other health conditions can affect how an infection behaves, so tell the team about them and about medicines or allergies.

Seek urgent dental or medical care rather than waiting for facial swelling to settle. Treatment commonly requires addressing the infected tooth or collection as well as using clinician-prescribed antibiotics when appropriate. Take prescribed medicine exactly as directed, and do not squeeze, puncture, or massage the swollen area.

Drink only if swallowing is comfortable, keep the head raised, and use simple pain relief only if it is safe for you. Do not place aspirin on the gum. If you have diabetes, check glucose as advised and tell the treating team if readings are difficult to control.

Go to emergency care immediately for trouble breathing or swallowing, drooling, a muffled voice, tongue or floor-of-mouth swelling, inability to open the mouth, confusion, faintness, or rapidly increasing neck or facial swelling. Fever with worsening redness, pain, or swelling also needs urgent review. Untreated infection can spread into deeper tissues and may lead to sepsis.

Ask which tooth or tissue is the source, whether drainage or dental treatment is needed, how to monitor the swelling, and when improvement should begin. Tell the team about allergies, diabetes, immune problems, and any recent dental work.