
Dr Thor Timothy
Consultant Pain Specialist & Anaesthesiologist
MBBS (NUS, Singapore), M.Med (Anaesthesiology) (NUS, Singapore), FFPMANZCA (ANZCA, Australia/New Zealand), FIPP (USA), EDPM (Europe), FAM (S’pore)
Facial pain on one side can be unsettling, especially when it comes on suddenly, keeps returning or feels different from a usual headache or toothache. You may find yourself first noticing pain while chewing, brushing your teeth, washing your face or touching a specific area on the cheek or jaw.
Facial pain may be related to a number of causes including dental problems, sinus infection, jaw joint issues, muscle tension or irritation of the facial nerves. In some cases, more severe conditions such as trigeminal neuralgia may be the underlying cause, especially if the pain feels sharp, stabbing or electric shock-like.
Because many conditions share similar symptoms, medical assessment may be needed to identify the underlying cause and type of medical attention needed.
What Are the Common Patterns of One-Sided Facial Pain?
Facial pain can affect the cheek, jaw, forehead, eye area, teeth or ear, and it may occur on just one side of the face. The type of pain, its location and any triggers can provide clues about the underlying cause and whether specialist assessment may be needed.
Sharp, Electric-Shock Pain
Sudden electric shock-like pain lasting seconds to minutes may indicate a nerve-related condition such as trigeminal neuralgia or nerve compression, particularly when triggered by speaking, chewing or touching the face.
Constant Aching or Throbbing Pain
Persistent aching or throbbing, especially in the lower face, may be linked to conditions like dental infection, tooth decay, sinusitis or temporomandibular joint(TMJ) disorders.
Pain Triggered by Chewing or Jaw Movement
Pain that occurs or worsens when engaging the mouth may point to TMJ disorders, dental conditions or muscle tension. Common symptoms are jaw clicking, popping and stiffness, difficulty opening the mouth and facial muscle fatigue.
Facial Pain with Nasal Symptoms
Pain around the cheeks, forehead or eyes accompanied by nasal symptoms may indicate sinusitis, chronic sinus inflammation or upper respiratory infections. These are common given Singapore’s humid climate.
Facial Pain With Numbness or Tingling
Facial pain accompanied by numbness, burning, tingling, reduced sensation, facial weakness or changes in vision warrants prompt medical assessment to identify the underlying cause, which could include trigeminal neuralgia, neurological disorders or post-shingles pain.
Facial Pain With Swelling or Fever
Facial pain accompanied by swelling, fevers, difficulty swallowing or opening the mouth are signs of infection such as a dental abscess or soft tissue infection should be assessed promptly.
Although one-sided facial pain can have many possible causes, the pattern of symptoms often provides valuable clues.
When to Seek Specialist Care for Facial Pain
Not all facial pain requires urgent treatment. However, persistent, worsening or recurring symptoms should not be ignored, particularly when they affect daily activities or quality of life.
You should seek medical attention if you are experiencing:
- Persistent or worsening facial pain
- Recurrent episodes of facial pain
- Severe or sudden onset pain
- Facial numbness, weakness or swelling
- Difficulty eating, speaking or opening the mouth
Early assessment can help identify the source of facial pain and guide appropriate treatment.

What Are the Facial Pain Treatment Options?
Facial pain management depends on the underlying cause. While some conditions respond well to medication, others may benefit from minimally invasive procedures or surgical intervention. A personalised treatment plan is often necessary to achieve lasting relief.
Medications
Medications are often the first line of treatment, particularly for nerve-related facial pain. Depending on the underlying cause and individual circumstances, your doctor may prescribe medications such as anticonvulsants, muscle relaxants or tricyclic antidepressants to help manage symptoms.
Injections
For some patients, injectable treatments may help relieve facial pain that does not respond adequately to medication alone.
Nerve Blocks
Nerve block injections interrupt pain signals and may provide temporary or long-lasting relief. They may be considered for:
- Neuropathic facial pain
- Trigeminal neuralgia
- Persistent facial pain syndromes
Trigger Point Injections
Trigger point injections target tight or sensitive areas around the muscles of the face, jaw and neck. They may be recommended for:
- Muscle-related facial pain
- TMJ-related muscle tension
- Chronic myofascial pain
- Jaw pain associated with muscle tightness
Botulinum Toxin (Botox) Injections
Botox injections may help relieve muscle-related facial pain. They may be considered for:
- Chronic facial pain
- Muscle-related pain disorders
- TMJ disorders
- Selected cases of trigeminal neuralgia
Facial Pain Surgery
In selected cases of trigeminal neuralgia, surgery may be considered when medication and less invasive treatments do not adequately control symptoms.
Microvascular Decompression (MVD)
A procedure that relieves pressure on the trigeminal nerve caused by nearby blood vessels.
Balloon Compression
A minimally invasive procedure that compresses part of the trigeminal nerve to reduce pain signals.
Gamma Knife Radiosurgery
A non-invasive treatment that uses focused radiation to target the trigeminal nerve.
Addressing One-Sided Facial Pain with Dr Thor Timothy
One-sided facial pain can arise from a wide range of conditions, from dental and sinus problems to nerve-related disorders such as trigeminal neuralgia. Because many of these conditions share similar symptoms but require different treatments, an accurate diagnosis is important to guide appropriate management.
Our pain specialist clinic in Singapore provides assessment and management for complex facial pain conditions, including trigeminal neuralgia. Dr Thor Timothy works closely with patients to develop personalised treatment plans based on their symptoms and diagnosis. If you are experiencing persistent or unexplained facial pain, book an appointment to discuss appropriate management options.
Frequently Asked Questions (FAQs) About One-Sided Facial Pain

Meet Our Pain Specialist in Singapore
Dr Thor Timothy, Anuntapon Chutatape
Dr Thor Timothy, Anuntapon Chutatape is an anaesthesiologist and pain specialist dedicated to helping patients find relief from acute and chronic pain without surgery. He was previously the Director of Acute Pain Services at Singapore General Hospital and has received advanced training in interventional pain medicine internationally. Dr Thor is a Fellow of Interventional Pain Practice (FIPP, USA), a Fellow of the Faculty of Pain Medicine of the Australian and New Zealand College of Anaesthetists (FFPMANZCA) and a Fellow of the Academy of Medicine Singapore (FAMS). He also holds the European Diploma of Pain Management (EDPM).

