Facial Pain in Kathmandu: Causes Beyond Toothache

Facial pain is one of the most common reasons patients visit both dentists and neurologists, and the challenge is determining which specialist to see first. The face is innervated by multiple nerve systems —— the trigeminal nerve (sensation), facial nerve (movement), upper cervical nerves, and autonomic pathways —— meaning that the same region of pain can arise from very different mechanisms.

Common neurological causes of facial pain: Trigeminal neuralgia is the most recognized neurological cause. It produces brief, electric-shock-like pains in one or more divisions of the trigeminal nerve (typically V2 or V3 —— the cheek or jaw area), triggered by light touch, chewing, speaking, or brushing teeth. The pain is unilateral, lancinating, and episodic —— seconds to minutes at a time —— and is distinct from the constant aching of dental pathology.

Dr. Jitendra Prasad Yadav — consultant neurologist & headache specialist at Kathmandu Neurology Clinic & Cognitive Center provides evidence-based evaluation for trigeminal neuralgia.

Migraine facial pain: Migraine does not always produce the classic unilateral throbbing temporal headache. Many patients experience facial pain —— forehead, cheek, or jaw —— as their primary migraine manifestation. The pain may be accompanied by nausea, photophobia, or phonophobia, and may respond to migraine-specific treatments. Without recognizing the migraine pattern, patients often undergo unnecessary dental procedures.

Cluster headache: Severe unilateral orbital or periorbital pain with autonomic features —— tearing, nasal congestion, eyelid drooping, restlessness —— is characteristic. Attacks occur in clusters of weeks to months, often at the same time of day, and are among the most painful conditions in medicine. The orbital localization frequently leads patients to ophthalmology or ENT before neurology evaluation.

Other causes: Temporomandibular joint (TMJ) dysfunction causes jaw pain with clicking and limited opening, often related to teeth grinding. Sinusitis produces constant facial pressure worsened by bending forward, often with nasal discharge. Cervicogenic headache refers pain from the upper cervical spine to the face via the trigeminocervical nucleus. Persistent idiopathic facial pain is a diagnosis of exclusion.

When to see a neurologist vs dentist: Start with a dentist if pain is localized to a specific tooth, worsened by hot/cold, or associated with swelling or visible dental pathology. See a neurologist when pain is electric-shock-like and triggered by light touch (possible trigeminal neuralgia), when pain is accompanied by nausea and light sensitivity (possible migraine), when pain occurs in brief severe attacks with tearing (possible cluster), or when dental evaluation has been normal but pain persists.

Evaluation approach: At Kathmandu Neurology Clinic & Cognitive Center, Dr. Jitendra Prasad Yadav (NMC 8029) evaluates facial pain with detailed history of onset, character, triggers, distribution, duration and associated symptoms. Neurological examination assesses facial sensation, corneal reflex, jaw movement and cranial nerve function. MRI brain with trigeminal protocol is ordered when trigeminal neuralgia is suspected, to exclude vascular compression or structural lesions. Treatment is directed at the identified cause —— carbamazepine or oxcarbazepine for trigeminal neuralgia, migraine-specific treatment for facial migraine, oxygen and triptans for cluster, and referral to dentistry or ENT when the picture is predominantly otologic or dental.

This article is educational and does not replace individual medical advice.