Peripheral nerve block

What is a peripheral nerve block?

A peripheral nerve block is an injection placed onto or near a specific nerve outside the spine, using ultrasound or landmarks to guide the needle. Common examples include the greater occipital nerve at the back of the head (for some headaches) and the suprascapular nerve (for some shoulder pain). Local anaesthetic is used to numb the nerve, sometimes with a steroid added.

The block has two roles. As a test, it can show whether numbing a particular nerve takes your pain away, which helps pinpoint the source. As a treatment, it is hoped to settle the pain for a while, sometimes longer than the anaesthetic alone would last.

It is important to set honest expectations. A nerve block is usually not a cure, and relief is often partial and temporary, lasting from hours to weeks or sometimes a few months. It is best used as one part of a wider plan rather than a stand-alone fix.

The evidence varies a lot by condition. For cluster headache, occipital nerve blocks have reasonable support; for many other types of pain the evidence is limited and of modest quality, with relief that varies between people. Your specialist should explain how strong the evidence is for your particular situation.

Types, options & approaches

There may be different ways to do this. The right approach depends on the clinical question and your circumstances.

Options at a glance

These are the main approaches described in this guide. The right option depends on the diagnosis, your goals and what your clinician thinks is safe.

Preparing for your procedure

• See a specialist who explains which nerve is being targeted, whether the block is mainly a test or a treatment, and how strong the evidence is for your condition.
• Tell the team about all your medicines, especially blood thinners such as warfarin, clopidogrel or rivaroxaban, which may need adjusting.
• Mention diabetes if a steroid is being used, as it can raise blood sugar for a few days, and any allergy to local anaesthetic.
• Tell the team if you might be pregnant, especially if X-ray guidance might be used.
• You can usually eat, drink and take your normal medicines unless told otherwise.
• Ask whether you can drive afterwards, as this depends on the nerve and whether you may have numbness or weakness.
• Have a way to record your pain over the next hours and days so you can judge how much the block helps.

What happens

You are positioned so the specialist can reach the target nerve, for example sitting forward for an occipital block at the back of the head. The skin is cleaned and, depending on the nerve, ultrasound is often used to see the nerve and guide the needle accurately; some blocks use surface landmarks or X-ray.

A small amount of local anaesthetic, sometimes with a steroid, is injected onto or near the nerve. You may feel a brief sting, then pressure, and sometimes a spreading numbness or tingling in the area the nerve supplies. The injection itself takes only a few minutes, with the whole appointment often 10 to 30 minutes.

Afterwards you usually rest briefly so the team can check you are well. You may notice numbness in the area for a few hours. You will often be asked to note how your pain behaves over the next hours and days, which helps judge whether the nerve is the source and whether the block has helped.

Is this procedure right for me?

A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.

Before you decide

Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.

Comfort, sedation or contrast choices

If local anaesthetic, sedation, contrast or pain relief is used, ask what is planned, why, and what it means afterwards.

The biggest uncertainty is usually how much and how long it will help, because the evidence varies widely by condition and relief is often temporary. For blocks near the chest or shoulder there is a small risk of a collapsed lung, so seek urgent help for new breathlessness or chest pain. Ask your specialist how strong the evidence is for your type of pain, what relief they expect, and how the block fits your wider plan.

Published figures to discuss

Reliable, comparable rates are hard to give because the nerves targeted, techniques and conditions vary so much, and much of the evidence is of modest quality. Serious complications are uncommon; the main uncertainty is how much and how long a block will help. Where a block is near the chest or shoulder, a collapsed lung is a recognised, though uncommon, risk. Quoted figures should be treated as cautious estimates.

These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.

What happens afterwards

There is usually little physical recovery. You may have numbness in the area for a few hours, and any benefit may show quickly or build over a few days, depending on what was injected.

• Numbness or tingling in the area for a few hours after the block
• A brief flare of soreness at the needle site
• Mild bruising or tenderness where the needle went in
• Gradual, partial easing of pain rather than a sudden complete fix
• Relief that may last hours, weeks or, in some people, a few months

Aftercare

• Keep the injection site clean and dry for 24 hours.
• Take care with the numb area until full sensation and strength return.
• Check with the team whether you can drive, as this depends on the nerve and any numbness or weakness.
• Use simple pain relief such as paracetamol if you get a flare, unless told otherwise.
• Keep up any rehabilitation or exercise advised, as this often matters for lasting benefit.
• Keep a simple diary of your pain and how long any relief lasts.
• Contact the clinic or your GP if you notice signs of infection or new symptoms. For urgent non-life-threatening advice, use NHS 111 in England, Scotland or Wales; in Northern Ireland, contact your GP out-of-hours service or your HSC Trust's Phone First service. If it is life-threatening, call 999 or go to A&E.

• A plan for getting home, and to check whether you can drive
• A note of your usual medicines, especially blood thinners
• Simple pain relief at home
• A pain diary or notes app ready
• Any rehabilitation or exercise plan to continue
• The clinic's contact number saved, plus NHS 111 (in England, Scotland or Wales) or, in Northern Ireland, your GP out-of-hours or HSC Trust Phone First number

⚠ Get urgent help if…

• Spreading redness, heat, swelling or discharge at the injection site
• Fever, chills or feeling generally unwell in the days afterwards
• New breathlessness or chest pain after a block near the chest or shoulder (seek urgent help)
• Numbness or weakness that does not settle within the expected few hours
• Severe, escalating pain that is not controlled by simple pain relief
• Signs of a serious allergic reaction, such as a widespread rash, swelling or difficulty breathing (call 999)

Who to contact: your clinician, clinic or test provider first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.

General guidance — it doesn't replace the specific advice your specialist gives you.

Results & realistic expectations

A helpful result is a clear reduction in your usual pain after the block. If local anaesthetic was used, an early improvement that matches how long the anaesthetic lasts suggests that nerve is carrying your pain. If a steroid was used, any benefit builds over a few days.

A nerve block cannot prove a long-term cure, and a poor response does not mean your pain is imaginary. It suggests that nerve is not the main source, or that a block is not the right tool, and your specialist will use the result, with your symptoms and examination, to decide what to do next.

Relief from a nerve block varies widely. A diagnostic block may last only hours; a therapeutic block with steroid may give days to weeks, and sometimes a few months, of relief. Some people get little benefit. Blocks are not usually a permanent solution, and repeated blocks are used selectively, with the aim of supporting wider treatment rather than replacing it.

Related tests, treatments or support

Peripheral nerve blocks are most useful alongside other care, such as rehabilitation and exercise for shoulder pain, or preventive treatment for headaches. They are not a substitute for managing the underlying condition, and a responsible service will use them as one part of a plan rather than a stand-alone cure.

Follow-up & long-term care

You should have a review to discuss how much relief you got and how long it lasted, which guides whether to repeat the block, change approach or focus on other treatment. For headache conditions, the block is often combined with a broader preventive plan. Report any signs of infection or new symptoms straight away.

• Keep up any rehabilitation, exercise or preventive treatment alongside the block
• Track how long any relief lasts so repeat blocks are only used when genuinely helpful
• Review the overall plan regularly rather than relying on repeated blocks alone

Repeat, follow-on and what comes next

• Diagnostic blocks may be repeated to confirm a finding before a longer-term treatment.
• Therapeutic blocks are sometimes repeated, but not indefinitely if they do not help.
• A poor response usually means that nerve is not the main source, prompting a change of approach.
• For some conditions, a positive block may lead on to other treatments such as a longer-acting procedure.

Ask what happens if the result is unclear or needs repeating, and what is included if further tests or follow-up are needed.

What good aftercare looks like

• A named contact route and clear advice to seek urgent care for breathlessness, chest pain or signs of infection.
• Clear advice on the expected numbness, when it should settle and whether you can drive.
• A planned review to judge how much relief you got and how long it lasted.
• Integration with rehabilitation or preventive treatment rather than blocks alone.
• An honest discussion of alternatives if the block does not help.

What affects the cost

Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:

• The specialist's fee for assessing you and performing the block
• The facility fee, and whether ultrasound or X-ray guidance is used
• Which nerve is targeted and whether one or both sides are treated
• The medicines used, including whether a steroid is added
• Follow-up appointments to review the result
• Whether the same fee covers a repeat block if needed

• The specialist's fee and who will perform the block
• The facility and any imaging (ultrasound or X-ray) fee
• Which nerve and how many sides are included
• The medicines used, including any steroid
• A follow-up review to assess the result
• What happens, and what it costs, if a repeat block is needed
• The policy if the block gives little or no relief

On the NHS? Peripheral nerve blocks are used in some NHS pain and headache services, with access and use varying by condition; private access may be used for speed or choice.

You're entitled to your total cost in writing — including reports, follow-up and what happens if the result is inconclusive — before you decide.

Consent traps and marketing red flags

These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.

Choosing a specialist safely

• Check the specialist is on the GMC Specialist Register for this area.
• Make sure they work at a CQC-registered service, and look for membership of the relevant Royal College or professional body.
• You're entitled to time to consider and to have your questions answered before you agree — the specialist who looks after you should explain it, not a salesperson.
• Be wary of pressure: time-limited offers or deposits taken before you've had time to think are red flags, not bargains.
• You're entitled to your total cost in writing — including any follow-up — before you decide.

How Vuemedics verifies every consultant →

Take this to your consultation. A good specialist will welcome every one of these.

• Which nerve are you targeting, and why do you think it is involved?
• Is this block mainly a test, a treatment, or both?
• How strong is the evidence for a block in my particular condition?
• What relief do you expect, and how long might it last?
• Can I drive afterwards, and how long might I be numb?
• How does this fit with my rehabilitation or wider treatment plan?
• Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
• Will you be the specialist who carries out my procedure, and who looks after me afterwards?
• What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
• What does a realistic result look like — and what can this procedure not achieve?
• What are my options, including waiting, doing nothing for now, or choosing a different approach?
• Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
• What is the total cost in writing, including any follow-ups, and how much time do I have to decide?

Find a verified specialist for peripheral nerve block

Every consultant is GMC-checked and independently reviewed. Search by postcode and distance, or switch to a map. Ordered by rating, relevance and recency — never by who pays.

How we made this page

Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →

Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.

Sources & standards: NICE NG193 — Chronic pain (primary and secondary) in over 16s Faculty of Pain Medicine — Patient information leaflets The Migraine Trust — Greater occipital nerve block injections Ultrasound-guided peripheral nerve block in chronic pain management — PMC Occipital nerve block for headaches — narrative review (PubMed) nidirect — Urgent and emergency care services (NI) nidirect — GP out-of-hours service (NI)

Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.

Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.