Sinusitis
Temporomandibular joint (TMJ) syndrome
Dental carries/abscess
Bruxism (teeth grinding)
Dental misalignment
Temporal arteritis
Trigeminal neuralgia
Herpes zoster; Postherpetic neuralgia
Trauma to the face.
Salivary gland disorders: Sialadenitis (eg, parotitis); Sialolithiasis (salivary gland stone)
Glaucoma
Recurrent painful ophthalmoplegic neuropathy
Numb chin syndrome (mental neuropathy) due to malignancy in the mandible
Idiopathic facial pain; Atypical facial pain
Migraine
Dacryocystitis (lacrimal sac infection)
Orbital or periorbital cellulitis
Peritonsillar abscess
Ludwig’s angina (retropharyngeal infection)
Glossopharyngeal neuralgia
Otitis media
Acoustic neuroma
Coronary disease; Angina pectoris
Aortic aneurysm
Carotid artery dissection
Lung cancer
