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Conditions · Nassau County, NY

Trigeminal Neuralgia
Electric facial pain, taken seriously and treated precisely.

At a glance

Trigeminal neuralgia causes sudden, severe, electric shock-like pain on one side of the face, lasting seconds to a couple of minutes. It is often triggered by light touch, chewing, talking or brushing teeth. It is usually caused by a blood vessel pressing on the trigeminal nerve, and an MRI checks for other causes. Carbamazepine, which is FDA-approved for trigeminal neuralgia, is the usual first treatment. Nerve blocks and specialist procedures help when medicine is not enough. Dr. Benjamin (Ben) Klyachman, D.O., board-certified in pain medicine and physical medicine and rehabilitation, leads care at Institute of Function in Nassau County, NY, which welcomes patients from across Long Island, New York City and beyond.

The trigeminal nerve carries sensation from the face. In classical trigeminal neuralgia, a nearby blood vessel compresses the nerve root. Less often, it is linked to multiple sclerosis or a mass. Some people also have a constant background ache between attacks.

Medically reviewed by Dr. Ben Klyachman, D.O. · Updated October 28, 2026

What it is

The trigeminal nerve carries sensation from the face. In classical trigeminal neuralgia, a nearby blood vessel compresses the nerve root. Less often, it is linked to multiple sclerosis or a mass. Some people also have a constant background ache between attacks.

How it is diagnosed

The pattern of attacks on history and exam, plus an MRI of the brain with detailed views of the trigeminal nerve to find the cause and rule out others. Dental and sinus causes are also considered.

How we approach it

  • Carbamazepine (FDA-approved for trigeminal neuralgia) as first-line medicine, with blood test monitoring. Oxcarbazepine is a common off-label alternative.
  • Other medicines added or substituted when needed, with attention to side effects.
  • Selected nerve blocks for short-term relief during severe flares, when appropriate.
  • Referral to a neurosurgeon to discuss microvascular decompression, radiosurgery or percutaneous procedures when medicine does not control the pain or is not tolerated.
  • Coordination with your neurologist and dentist.

Common
questions.

When to seek urgent care

New facial numbness, weakness, vision changes or facial pain with fever need prompt medical evaluation.

This page is general information, not medical advice. Individual results vary. Medical Disclaimer

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