The sphenopalatine ganglion (SPG) is a small but significant nerve bundle located deep behind the nose, closely linked to the trigeminal nerve and involved in several types of head and facial pain. An SPG block is a minimally invasive procedure that targets this nerve cluster directly, offering relief for conditions that often prove difficult to control with medication alone — particularly cluster headache, chronic migraine, and certain forms of facial pain.
Dr. Kavita Poply performs sphenopalatine ganglion blocks using a precise, minimally invasive technique, offering patients a treatment option that avoids the systemic side effects associated with some oral medications.
What is a Sphenopalatine Ganglion Block?
An SPG block involves delivering local anaesthetic (and in some cases, other medication) directly to the sphenopalatine ganglion, most commonly via a thin, flexible applicator passed gently through the nostril, or occasionally using an image-guided injection approach for a more targeted, longer-lasting effect. By calming activity in this nerve cluster, the procedure can interrupt the pain pathways responsible for several types of head and facial pain.
Because the SPG sits close to the nasal cavity, the transnasal approach is well tolerated and can often be performed without the need for needles for the initial diagnostic block.
Conditions Treated
- Cluster headache, both for acute attacks and as part of a preventive strategy
- Chronic migraine, particularly when other treatments have been insufficient
- Chronic facial pain and trigeminal neuralgia-related pain
- Trigeminal autonomic cephalalgias (a group of headache disorders related to cluster headache)
- Post-traumatic headache in select cases
Symptoms That May Require This Treatment
- Severe, one-sided headache or facial pain, often around the eye or temple
- Headache attacks associated with eye watering, nasal congestion, or eyelid drooping
- Frequent migraine attacks poorly controlled with standard preventive medication
- Facial pain not adequately managed by oral medication
- A need for a treatment option with minimal systemic side effects
How the Procedure Works
For the transnasal approach, a thin applicator delivers local anaesthetic to the area of the SPG through the nostril while the patient lies comfortably on their back with the head slightly tilted — a technique that avoids needles altogether for this method and is generally very well tolerated. For more targeted or longer-acting blocks, an image-guided injection approach may be used, allowing precise delivery of medication to the ganglion under real-time imaging guidance.
Our Approach to Treatment
Comprehensive Assessment
A detailed review of headache or facial pain pattern, triggers, and previous treatments, to confirm that an SPG block is an appropriate option.
Trial and Treatment Phase
An initial block is often used both diagnostically and therapeutically — if it provides meaningful relief, this helps confirm the SPG as a key contributor to the pain and supports planning further treatment.
Procedure Overview
- Minimally invasive, typically performed as an outpatient procedure
- Transnasal approach avoids needles for the initial block
- Can also be performed with image guidance for more precise, longer-lasting effect
- Procedure usually takes just a few minutes
- Patients can generally resume normal activities the same day
- May be repeated periodically depending on response and condition
Benefits of SPG Block
- Minimally invasive, with a favourable side-effect profile compared to some systemic medications
- Can provide both diagnostic information and therapeutic relief
- Useful for headache and facial pain conditions that are difficult to manage with medication alone
- Quick outpatient procedure with little to no downtime
- Can be repeated as part of an ongoing management plan
Why Choose Expert Care?
Precise technique and correct patient selection are essential to getting the full benefit from an SPG block, particularly for image-guided approaches. With a patient-centred approach, Dr. Kavita Poply ensures every SPG block is performed accurately and is integrated into a broader, personalised headache or facial pain management plan.
Book Your Consultation
If you’re living with severe headache or facial pain that hasn’t responded well to standard treatment, a sphenopalatine ganglion block may offer an effective alternative. Book your consultation today to find out if it’s right for you.
Frequently Asked Questions
Q.1 Is a sphenopalatine ganglion block painful?
Ans. The transnasal approach is generally very well tolerated and doesn’t involve needles, while image-guided injections use local anaesthetic to minimise discomfort during the procedure itself.
Q.2 How long does relief from an SPG block last?
Ans. This varies between patients and depends on the technique used and the underlying condition — some patients experience relief lasting days to weeks, while others may need a series of blocks for sustained benefit.
Q.3 Is an SPG block only used for cluster headache?
Ans. No, while it’s particularly well-recognised for cluster headache, it’s also used for chronic migraine, certain facial pain conditions, and other headache disorders related to the trigeminal-autonomic system.
Q.4 Can an SPG block replace my regular headache medication?
Ans. Not necessarily — for many patients it’s used alongside other treatments as part of a broader management plan, though some find it reduces their reliance on other medication.