Causes of facial nerve pain include an abscessed tooth, sinusitis and trigeminal neuralgia, according to WebMD. Injuries to the face and temporomandibular joint disorders also cause facial nerve pain.
An abscessed tooth occurs when a bacterial infection leads to a pus accumulating in the center of a tooth, notes MedlinePlus. The condition has a variety of causes, including tooth decay and damage to a tooth. Swelling of the abscessed tooth causes pain. Other symptoms of this condition include fever, pain while eating, a bitter taste in the mouth and swelling in the upper or lower jaw.
Sinusitis is inflammation of the sinuses and nasal passages, explains Healthline. The condition has various causes, including bacterial or viral infections, seasonal allergies and structural issues in the nose. A common symptom of sinusitis is a sinus headache, which feels like pressure in the forehead and cheeks. Other symptoms of sinusitis include fever, fatigue, stuffy nose and cough.
Trigeminal neuralgia is a chronic nerve condition that causes extreme facial pain, according to the National Institute of Neurological Disorders and Stroke. The pain associated with trigeminal neuralgia can last as long as two minutes per episode, and attacks can occur in succession. The condition has a variety of causes, including multiple sclerosis, nerve compression from a tumor and oral surgery.