Why Do I Have Electric Shock Pain in My Face?

Sinus infections, migraine headaches and tooth decay are among the many causes of temporary facial pain. But a searing jolt like an electric shock triggered by the lightest touch or movement may signal a more lasting problem caused by damage to a facial nerve.

The trigeminal nerve transmits sensations like touch, heat and cold from the face, teeth and mouth to the brain. When it is compressed or otherwise damaged, jolts of pain lasting up to two minutes can occur anywhere from the jaw to the forehead. This condition is called trigeminal neuralgia (TN), a disorder that commonly begins with short, mild attacks that become progressively longer, more frequent and more severe. They are triggered by such everyday actions as washing the face, shaving or applying makeup.

The good news: Several types of medicine are highly effective in reducing painful trigeminal neuralgia attacks. One small study in 2024 found 46.2% of patients responded to oral medications within three months, and 38.5% responded within 12 months.

What Causes Trigeminal Neuralgia?

Compression of the trigeminal nerve — whether from injury or another medical condition such as multiple sclerosis or a tumor — causes trigeminal neuralgia. TN can appear following a stroke or after a shingles infection. But the most common cause is an anatomical variation called a vascular loop that brings a blood vessel into close contact with the trigeminal nerve. If the blood vessel and nerve are actually touching, the friction, over time, can wear down the nerve’s myelin sheath, leaving it exposed and vulnerable.

Vascular loops are a common and often harmless anatomical variation: One imaging study found them in 47% of individuals with no symptoms. While vascular loop can cause TN in certain individuals, it is rare – in far less than 1% of the population, more frequently in women and people over 50. New cases of trigeminal neuralgia affect four to five of every 100,000 people in the United States each year. While rare, TN can be debilitating. Patients describe the pain as lancing, stabbing, shooting, sharp or electrical, and some report a constant aching pain between attacks.

How Trigeminal Neuralgia Is Treated

There are no specific tests to diagnose trigeminal neuralgia, but there are criteria, including head pain lasting a few seconds that recurs and can’t be attributed to another diagnosis. You can help your doctor diagnose your facial pain by coming to your appointment ready to describe your pain, as well as the length and frequency of attacks.

Your doctor may order an imaging test such as an MRI, which can rule out problems like a tumor while also detecting other abnormalities like a vascular loop or aneurysm.

Several types of medicine are used to treat TN, but anticonvulsants are the first line because they reduce the rapid, abnormal firing of pain signals in the trigeminal nerve. Other treatment options include:

• Botulinum toxin, which blocks neurotransmitters, reducing the frequency and intensity of attacks.
• Muscle relaxers like baclofen, which reduce the number of pain attacks by suppressing nerve excitability.
• Some of the older medicines for depression and other mood disorders because they, too, affect neurotransmitters.

TN Triggers

Your doctor also may help you identify specific triggers for your TN pain, which can be as innocuous as a breeze against your cheek or smiling. Other common triggers include:

• Washing
• Shaving
• Applying makeup
• Brushing teeth
• Drinking hot or cold beverages
• Talking
• Chewing
• Cold

Triggers usually involve cold, touch, force or vibration. You may be asked to keep a journal to identify your most common triggers so you can take steps like these to minimize their impact during an attack:

• Use a very soft brush and warm water to brush your teeth.
• Wear a soft scarf to protect your face from the wind.
• Choose lukewarm food and drinks.
• Cut food into small bites to avoid opening your mouth widely.

Medicine and trigger avoidance make living with trigeminal neuralgia manageable for most patients. In the rare cases when those don’t work and a vascular loop is causing the symptoms, a surgical procedure called a microvascular decompression to lift the blood vessel off the nerve may be an effective last resort.

This content is not AI generated.