Botox for chronic migraine

What is Botox for chronic migraine?

Botox is a brand name for botulinum toxin type A, a medicine that, in tiny amounts, blocks signals between nerves and muscles. For chronic migraine, it is given as a series of small injections at set points around the forehead, temples, back of the head, neck and shoulders.

It is used only for chronic migraine, defined as headaches on at least 15 days a month, of which at least 8 have migraine features. It is a preventive treatment, aiming to reduce how often headaches happen, not a treatment for an individual attack.

NICE recommends it on the NHS only when at least three other preventive medicines have not worked, are not tolerated or are unsuitable, and when any overuse of painkillers has been addressed. It does not work for everyone, and treatment is stopped if it does not help enough.

The injections are repeated about every 12 weeks. The effect, when it occurs, is a reduction in headache days rather than a cure.

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

• Make sure your diagnosis is chronic migraine and that you meet the criteria for treatment.
• Keep a headache diary so the number of headache days can be counted before and after treatment.
• Tell the clinician if you are overusing painkillers or triptans, as this usually needs tackling first.
• List all your medicines, especially other treatments affecting muscles or nerves.
• Tell them about any neuromuscular conditions, swallowing problems, or previous reactions to botulinum toxin.
• Check that your injections will be given by a suitably trained specialist using a genuine, licensed botulinum toxin product.
• Mention if you are pregnant, planning pregnancy or breastfeeding.
• Plan to carry on with your day as normal, as there is usually no recovery time.

What happens

The treatment is given in a clinic by a specialist trained in the technique, usually a neurologist or headache specialist. You sit or lie comfortably and the injection sites are identified across your forehead, temples, back of the head, neck and shoulders.

A very fine needle is used to give a series of small injections just under the skin or into the muscle at each point. The full set typically involves around 30 or more tiny injections and takes about 15 to 20 minutes. Most people describe a brief sting or pinprick at each site.

There is no cut and no stitches. You can usually leave straight away and return to normal activities. The treatment is repeated about every 12 weeks if it is helping.

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.

Botox for migraine uses small, targeted doses, so serious spread of the toxin is rare, but you should stay alert for signs that it has spread beyond the injection area. These signs of iatrogenic botulism - severe eyelid droop, slurred speech, difficulty swallowing or breathing, and generalised muscle weakness - most often appear about 4 to 8 days after treatment but can occur up to 4 weeks later, and need immediate medical help. To keep the risk low, make sure your injections are given by a suitably trained specialist using a genuine, licensed product, not an unlicensed or counterfeit one. The most common practical issue is that it simply may not help enough; treatment is stopped if headache days do not fall sufficiently. Overusing painkillers can blunt the benefit, so this is usually addressed first.

Published figures to discuss

Botox for chronic migraine helps some people and not others, and the size of benefit varies. Trials show a modest average reduction in headache days, which is why NICE uses a defined response threshold and stopping rule. Side effects are usually mild and local. Because responses differ so much between people, individual outcomes cannot be predicted from a single figure.

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 no recovery time after the injections themselves. 'Afterwards' is mainly about whether your headache days fall over the following weeks and cycles.

• Mild soreness, redness or small bruises at the injection sites.
• A short-lived headache or neck stiffness after treatment.
• Temporary, mild muscle weakness near where you were injected.
• Needing to wait several weeks to know whether it is working.

Aftercare

• Carry on with normal activities; no specific recovery is usually needed.
• Keep your headache diary so the response can be measured accurately.
• Continue any other agreed migraine treatments unless told otherwise.
• Keep acute painkiller use within safe limits to avoid overuse headache.
• Report any difficulty swallowing, breathing or speaking, severe eyelid droop, slurred speech or widespread weakness straight away - these can appear days to weeks after treatment.
• Attend your review so the benefit can be assessed before repeating.

• Confirm you meet the criteria for chronic migraine treatment.
• Start or continue a headache diary to count headache days.
• Address any painkiller or triptan overuse first.
• List your medicines and any muscle or nerve conditions.
• Note pregnancy plans if relevant.
• Save the clinic contact route for problems and reviews.

⚠ Get urgent help if…

• Severe drooping of the eyelids, slurred speech, difficulty swallowing or breathing, or widespread muscle weakness - these can mean the toxin has spread and need immediate medical help.
• Be aware these spreading effects can appear from a few days up to about 4 weeks after treatment, not only straight afterwards.
• Marked or worsening muscle weakness beyond the injection area.
• Signs of an allergic reaction such as facial swelling, widespread rash or wheezing (seek emergency care).
• A severe or unusual headache different from your normal migraines.
• Spreading redness, swelling, heat or discharge at an injection site.
• Any new neurological symptoms such as drooping, double vision or limb weakness.

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

When Botox helps, people usually notice fewer headache days each month and sometimes less severe attacks, building over the weeks after each treatment rather than straight away. It reduces headache burden; it does not cure migraine.

NICE guidance says treatment should be stopped if there is less than a 30% reduction in headache days a month after two treatment cycles, or if the condition improves to fewer than 15 headache days a month (episodic migraine) for three months in a row. This is why keeping an accurate headache diary matters: it is how benefit is judged.

The effect of each treatment tends to wear off after about 12 weeks, so repeat injections are needed to maintain any benefit. Over time, some people's migraines improve and treatment can be reduced or stopped, while others find the benefit lessens or does not justify continuing. Response is reviewed regularly.

Related tests, treatments or support

Botox for migraine is often used alongside lifestyle measures and sometimes other preventive approaches, under specialist guidance. It is generally not combined with CGRP medicines on the NHS without specialist criteria. Acute attack treatments are still used, but kept within safe limits to avoid overuse headache.

Follow-up & long-term care

You are reviewed after treatment to count headache days and check for side effects, with a key decision point after two cycles about whether to continue. Make sure you know who reviews you, how the response will be measured, and how to get help between sessions.

• Repeat injections about every 12 weeks while they continue to help.
• Keep a headache diary to track response between treatments.
• Keep acute medicine use within safe limits.
• Review with your specialist whether continued treatment remains worthwhile.
• Reassess if your headaches change or improve to episodic migraine.

Repeat, follow-on and what comes next

• Treatment is stopped if headache days do not fall by at least 30% after two cycles.
• Some people respond to a second cycle having not clearly responded to the first.
• Treatment is reviewed and may be stopped if migraine improves to episodic frequency.
• Dosing or injection sites may be adjusted between cycles.

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

• Accurate headache-day counting to judge response objectively.
• A clear plan to review after two cycles and stop if it does not help enough.
• A named contact route for side effects, including urgent symptoms.
• Coordination with wider migraine care and your GP.

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 assessment and for giving the injections.
• The cost of the botulinum toxin medicine itself.
• How frequently treatment is repeated (about every 12 weeks).
• Whether follow-up appointments to assess response are included.
• Whether a headache diary review and ongoing prescribing are included.
• The clinic or facility fee where treatment is given.

• The cost per treatment session, including the medicine.
• How many sessions are likely before judging the response.
• Whether follow-up reviews are included.
• What happens, and what it costs, if treatment is stopped for lack of benefit.
• Whether communication with your GP and ongoing care are included.
• The cancellation and rebooking policy.

On the NHS? Botox for chronic migraine is available on the NHS only when strict NICE criteria are met (chronic migraine after at least three failed preventives, with medication overuse addressed); otherwise it is a private treatment.

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.

• Do I meet the chronic migraine criteria, and have we addressed any painkiller overuse?
• How will we measure whether the treatment is working, and when would we stop?
• What side effects should I expect, and which need urgent attention?
• How does this compare with CGRP medicines for me, and why this option first?
• How often will I need treatment, and who will review me?
• 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 botox for chronic migraine

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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 TA260 - Botulinum toxin type A for prevention of headaches in chronic migraine (recommendations) NICE - patient summary: Botox for chronic migraine The Migraine Trust - CGRP monoclonal antibodies and Botox NHS - Migraine treatment Brain & Spine Foundation - Migraine MHRA — botulinum toxin type A: updated warnings on risk of iatrogenic botulism (July 2026)

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.