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Overview - Migraine

Migraine is a common condition that affects your brain and nervous system.

The main symptom is a severe headache on 1 side of your head. There are things you can do to manage the symptoms of migraine.

Check if it's migraine

The most common symptom of a migraine attack is moderate or severe headache. The headache feels like throbbing pain on 1 side of your head.

What we mean by severe pain

Severe pain:

  • always there and so bad it's hard to think or talk
  • you cannot sleep
  • it's very hard to move, get out of bed, go to the bathroom, wash or dress
  • you cannot work due to the pain

Moderate pain:

  • always there
  • makes it hard to concentrate or sleep
  • you can manage to get up, wash or dress

Mild pain:

  • comes and goes
  • is annoying but does not stop you from doing things like going to work

You may have other symptoms before or after the headache, such as:

  • feeling sick (nausea) or vomiting
  • sensitivity to movement, light, sound or smell

Other symptoms can depend on the type of migraine, such as:

  • migraine without aura - an intense headache but no warning signs
  • migraine with aura - includes warning signs before the attack such as seeing flashing lights
  • silent migraine - aura or other migraine symptoms but no headache

The symptoms can appear in stages.

Symptoms and stages of migraine

Non-urgent advice: Contact your GP if you have:

  • severe migraine symptoms that do not improve with painkillers you can buy without a prescription
  • more than 5 migraine attacks in a month

Emergency action required: Call 112 or 999 and ask for an ambulance if

you or someone else has:

  • paralysis or weakness in 1 or both arms, or 1 side of the face
  • slurred or garbled speech
  • a sudden, very painful headache unlike anything you had before
  • headache with a high temperature (fever), stiff neck, confusion, seizures, double vision and a rash

These symptoms may be a sign of a more serious condition.

What happens at your appointment

Your GP may do a physical examination and ask you:

  • about your symptoms and when they happen
  • if other people in your family have migraine
  • to keep a diary of your symptoms

Diagnosing migraine

Treating migraine

There is no cure for migraine. But treatment can help to reduce the symptoms.

Medicines include:

  • painkillers - including medicines you can buy without a prescription, such as paracetamol and ibuprofen
  • triptans - these help reverse changes in the brain linked to migraine
  • anti-sickness medicines (anti-emetics) - to relieve feeling sick (nausea) or vomiting

Try not to use the maximum dosage of painkillers more than 2 days a week. This could make it harder to treat headaches over time.

During a migraine attack, it may help to:

  • sleep or lie in a dark room
  • drink enough water
  • use cold packs or heat packs

Migraine treatment and prevention

Preventing migraine attacks

To help prevent migraine attacks:

Your GP may also prescribe medicines, such as:

  • anti-seizure medicine (topiramate)
  • high blood pressure medicine (propranolol)

It may take several weeks before symptoms improve.

Causes of migraine

Migraine is a common condition. It affects around 1 in 5 women and around 1 in 15 men. It usually begins in early adulthood.

We do not know the exact causes of migraine, but they may include:

  • temporary changes in the chemicals, nerves and blood vessels in the brain
  • your genes - around half of people who have migraine have a close relative with the condition

Some people with migraine find certain things can trigger a migraine attack. For example, stress.

Causes of migraine and common triggers

Outlook for migraine

Migraine can affect your quality of life. Migraine attacks can stop you doing everyday activities. Some people find they need to stay in bed for days.

Some people have attacks often. Other people only have an attack sometimes. It's possible for years to pass between migraine attacks.

Migraine attacks can sometimes get worse over time. But most people find they improve over many years.

Complications of migraine

People with migraine may be more at risk of ischaemic strokes or mental health difficulties. But the risk is small.

Complications of migraine

Migraine and stigma

Stigma happens when there are negative beliefs about migraine. You may worry about stigma or experience stigma from other people.

This could be that people:

  • do not understand your symptoms
  • think that migraine is "just a headache"
  • judge you if you take days off or avoid activities

Stigma can lead to isolation or unfair treatment at work, school, or in the healthcare system. It can cause stress and make it hard to manage your triggers. You may also feel the need to hide your symptoms or condition.

Talking therapies can help with stress or anxiety related to migraine.

You are not alone in experiencing stigma. If you feel isolated or unable to cope, it is important to get support.

Support for migraine

There are organisations that offer advice and support for people with migraine:

The Drugs Payment Scheme can help if you or your family pay more than €80 a month for approved medicines.

Living Well programme

Living Well is a free self-management programme for people with a long-term health condition. It provides workshops and resources to help you manage your condition better.

The Living Well programme


Content supplied by the NHS and adapted for Ireland by the HSE

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This project has received funding from the Government of Ireland’s Sláintecare Integration Fund 2019 under Grant Agreement Number 123.

Page last reviewed: 16 August 2024
Next review due: 16 August 2027