SphenoCath Procedure (SPG Nerve Block)

This minimally invasive procedure offers immediate relief for most patients with chronic migraines, severe headaches, and other facial pain and headache syndromes.

What is SphenoCath®?

SPG block stands for sphenopalatine ganglion block. The sphenopalatine ganglion is a collection of nerve cells located just under the tissue lining the back of the nose.

By applying a local anesthetic to the area, nerve impulses can be temporarily blocked, providing relief from various types of pain. The SphenoCath® is designed to quickly and comfortably deliver medication to the area of the sphenopalatine ganglion.

The SphenoCath® device is a soft, flexible catheter that delivers pain-relieving medication inside the nasal passageway with maximum patient comfort.

How Does SphenoCath® Work as a Chronic Migraine & Headache Treatment?

  • 2 to 5 minute in-office procedure
  • Majority of patients experience immediate relief
  • Very high success rate
  • Safe for adults and children
  • Very low risk and few side effects

Oftentimes this treatment can help patients’ bodies naturally combat the triggers of their pain (e.g., allergies, hormones, etc.) by “resetting” their sphenopalatine ganglion.

The duration of pain relief is different for every patient. Some patients require only one treatment. Other patients experience relief after the first treatment for one or two weeks, then require additional treatments. For these patients, the length of time between treatments typically increases to four weeks, and eventually longer.

How the SphenoCath® Procedure Works

  • Your doctor will have you lie flat
  • A small catheter is inserted into your nose
  • Pain medication (Lidocaine) is delivered through the catheter
  • And you're done!

The procedure is not painful when performed correctly, although some patients experience minor discomfort when the catheter is first inserted.

In total, an SPG block using the SphenoCath® takes 2-3 minutes.


Patients should remain in a flat or reclined position for 10-15 minutes afterward to maximize the benefit of the procedure.

Patients can resume their normal daily activities immediately.

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