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Facial pain can be caused by anything from an infection to nerve damage in the face. Common causes for facial pain include: 1  oral infections. 2  ulcers (open sores). 3  abscess (collection of pus under the surface tissue in the mouth, for example). 4  skin abscess (collection of pus under the skin).5  headache.6  facial injury.7  toothache.ommon causes for facial pain include: 1  oral infections. 2  ulcers (open sores). 3  abscess (collection of pus under the surface tissue in the mouth, for example). 4  skin abscess (collection of pus under the skin). 5  headache. 6  facial injury. 7  toothache.
Viral infections such as shingles may affect facial nerves causing severe facial pain or eye problems (keratitis). An infected or blocked salivary gland or a salivary stone (sialolithiasis) may cause facial swelling or pain. Lyme disease is an infection that is spread by the bite of infected ticks and may cause facial pain. Closed-angle glaucoma causes vision problems and severe, aching pain in or behind the eye.