Trigeminal Nerve Block

A trigeminal nerve block is a minimally invasive, image-guided procedure used to treat chronic facial pain caused by trigeminal neuralgia, shingles, and other facial pain syndromes. The injection delivers local anesthetic and corticosteroid medication near the trigeminal nerve to interrupt pain signals and reduce inflammation.

Trigeminal nerve blocks are commonly recommended for patients with severe, persistent facial pain that has not responded to oral medications.

What Is a Trigeminal Nerve Block?

A trigeminal nerve block involves injecting a local anesthetic, often combined with a corticosteroid, near one of the trigeminal nerve branches.

The injection works by:

  • Blocking pain signals transmitted to the brain
  • Reducing nerve inflammation
  • Decreasing the frequency and intensity of facial pain episodes

Pain relief may occur immediately due to the anesthetic. Longer-term relief typically develops within two to three days as the steroid reduces inflammation.

Conditions Treated with Trigeminal Nerve Block

Trigeminal nerve blocks are indicated for:

  • Trigeminal neuralgia
  • Postherpetic neuralgia affecting the face
  • Shingles (herpes zoster) involving trigeminal branches
  • Atypical facial pain syndromes
  • Neuropathic facial pain

These injections are especially beneficial for patients with sharp, shooting facial pain that interferes with daily function.

Symptoms of Trigeminal Nerve Pain

Patients may experience:

  • Electric shock–like facial pain
  • Sudden, severe episodes triggered by touch or chewing
  • Burning or stabbing facial pain
  • Pain localized to the forehead, cheek, or jaw
  • Sensitivity to light touch

These symptoms are characteristic of trigeminal neuralgia and related neuropathic conditions.

Table of Contents

How the Procedure Is Performed

Trigeminal nerve blocks are performed in an outpatient setting under imaging guidance.

The procedure includes:

  1. Positioning the patient appropriately
  2. Cleaning the skin with antiseptic solution
  3. Using fluoroscopic (X-ray) guidance to accurately position a needle
  4. Injecting local anesthetic and corticosteroid near the targeted nerve branch
  5. Removing the needle and applying a small bandage
  6. Monitoring the patient briefly before discharge

A series of injections may be recommended to improve the duration and effectiveness of pain relief.

Benefits of Trigeminal Nerve Block

  • Rapid reduction in facial pain
  • Minimally invasive outpatient procedure
  • Targeted treatment of nerve inflammation
  • Reduced reliance on systemic medications
  • Improved quality of life

Frequently Asked Questions

How does a trigeminal nerve block relieve facial pain?

The injection delivers local anesthetic and corticosteroid near the trigeminal nerve to block pain signals and reduce nerve inflammation.

The procedure typically takes 15 to 30 minutes and is performed in an outpatient setting under imaging guidance.

Temporary relief may occur immediately from the anesthetic. Longer-lasting relief usually begins within two to three days as the steroid takes effect.

Relief can last weeks to months, depending on the severity of trigeminal neuralgia or facial nerve inflammation.

Begin your journey to recovery.

Reach out to our specialists to schedule an initial consultation. We’ll carefully review your symptoms and match you with the right expert for your specific condition.

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