Trigeminal Nerve Block

Treatment Details

What is a trigeminal nerve block and how does it help me?

  • The trigeminal nerve is responsible for delivering touch, pain, temperature sensations from your face to the brain.
  • The trigeminal nerve block is primarily used to treat trigeminal neuralgia (a condition that causes painful sensation on one side of the face) and other types of facial pain.
  • Some patients who suffer from chronic migraine responded well to trigeminal nerve blocks as well. 
How is the procedure performed?

The procedure: 

  • Will take about 30 minutes to complete
  • Will be performed under light sedation 
  • A local anaesthetic will be given to numb the skin of the injection site
  • Medications (local anaesthetic and steroids) will then be injected into the target site with X-ray guidance 
How long can the effects last?

You may experience immediate pain relief until the local anaesthetic effect wears off. The pain relief will then improve again in 2-3 days and it can last for weeks to months depending on each individual. A radiofrequency treatment is recommended to allow longer-lasting and better quality in pain relief.  

Am I a good candidate for a trigeminal block?

Trigeminal nerve blocks can be beneficial and effective for you if you have facial pain or chronic migraine that do not respond to other treatments.

What are the possible risks?

Trigeminal nerve block is considered very safe and has few risks or side effects: 

  • Temporary bruising, swelling, soreness or numbness over the injection site 
  • Difficulty of speaking, swallowing or chewing 
  • Infection
  • Bleeding 
  • Nerve damage 

The side effects and risks are minor and uncommon. 

What should I expect after the procedure?
  • You will need to be accompanied home as you are not advisable to drive after the procedure. 
  • Your doctor will advise the detailed recovery instructions, but general guidelines include: 
  • Apply cold compress over the injection if any pain or swelling
  • Avoid strenuous exercise for at least 24 hours, you may return to your normal activities on the next day 

A trigeminal nerve block is fortunately a low risk and effective treatment for chronic facial pain. 


Every condition is different, hence it is best to consult a specialist who is experienced in managing such conditions. Reach out to Dr Timothy Thor today.


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