What is headache? explain types and cure in details

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What is a headache?

A headache is pain or pressure felt in the head, face, scalp, or upper neck. The brain tissue itself does not sense pain. Headache pain usually comes from pain-sensitive structures around it, such as blood vessels, nerves, muscles, the scalp, sinuses, eyes, teeth, or the covering of the brain.

Headache is a symptom, not always a disease. Most headaches are not dangerous, but a new or unusual headache can sometimes signal a serious underlying condition.

There is not one universal “cure.” The right treatment depends on the headache type and on whether an underlying cause is present.

Main types of headache

1. Primary headaches

These are headache disorders themselves, not caused by another illness.

Type	Typical features	Usual treatment approach
Tension-type headache	Mild to moderate, steady pressure or tight band around both sides of the head; often associated with stress, poor sleep, prolonged posture, or eye strain; usually no vomiting	Rest, hydration, sleep, gentle neck movement, relaxation, and occasional simple pain relief
Migraine	Usually moderate to severe, often throbbing; may be one-sided; can cause nausea, vomiting, sensitivity to light/sound, and worsens with activity. Some people have reversible visual, sensory, or speech aura before it.	Early acute migraine treatment, nausea treatment if needed, trigger management, and preventive therapy if attacks are frequent/disabling
Cluster headache	Excruciating one-sided pain around or behind one eye, lasting roughly 15 minutes to 3 hours, often in repeated attacks over weeks; red/watery eye, blocked/runny nostril, eyelid droop, sweating, and restlessness on the same side	Requires clinician-directed treatment. High-flow oxygen and specific migraine medicines can abort attacks; preventive medicines may be needed
Medication-overuse headache	Headache becomes frequent or daily after regular use of painkillers, combination headache tablets, triptans, opioids, or caffeine-containing medicines	Planned reduction/withdrawal of the overused medicine, often with medical support and prevention of the original headache disorder
Other uncommon primary headaches	Brief stabbing headaches, cough/exertion/sex-related headache, new daily persistent headache, etc.	Need medical evaluation, especially when new or unusual

Primary headache categories include migraine, tension-type headache, and cluster headache. Neuroanatomy Through Clinical Cases, p. 165. Tension-type pain is typically bilateral and pressure-like, while cluster headache usually causes extremely severe pain behind one eye with autonomic symptoms such as tearing and nasal congestion. Neuroanatomy Through Clinical Cases, p. 165.

2. Secondary headaches

These occur because of another condition. Examples include:

Fever or viral illness
Dehydration, fasting, alcohol hangover, or caffeine withdrawal
Eye strain or an incorrect glasses prescription
Dental, jaw, ear, or sinus problems
Neck injury or head injury
High blood pressure emergencies
Meningitis or encephalitis
Bleeding around the brain, stroke, or blood-vessel dissection
Brain tumor, raised pressure inside the skull, or low spinal-fluid pressure
Pregnancy-related disorders, including pre-eclampsia
Side effects of medicines or substance withdrawal

Treating a secondary headache means finding and treating its underlying cause, not simply taking pain medicine.

Treatment and prevention in detail

A. Tension-type headache

Helpful steps

Drink water and eat regularly.
Rest in a quiet place and prioritize adequate sleep.
Use a warm pack on the neck/shoulders.
Gentle stretching, posture correction, regular breaks from screens, and exercise can help.
Stress-management methods such as paced breathing, relaxation, counselling, or physiotherapy may be useful.
An occasional simple pain reliever such as acetaminophen/paracetamol or an NSAID may help if it is safe for you.

Do not take pain medicine frequently without advice. Frequent use can perpetuate headache. A 2025 systematic review found psychological interventions may help tension-type headache, though the best approach depends on the individual (PMID: 41315905).

B. Migraine

During an attack

Treat early, at the beginning of the headache.
Rest in a dark, quiet room.
Hydrate, especially if nausea or vomiting is present.
Simple options may include acetaminophen/paracetamol or an NSAID if medically safe.
If attacks are moderate to severe or do not respond, a clinician may prescribe a triptan. Triptans are not suitable for everyone, including some people with coronary artery disease, stroke/TIA history, or uncontrolled hypertension.
A clinician may add an anti-nausea medicine.

Textbook acute options include NSAIDs, dopamine-blocking antiemetics, triptans, ditans, ergot derivatives, and CGRP-targeting drugs. Neuroanatomy Through Clinical Cases, p. 165.

Preventing recurrent migraine Keep a diary for at least 4 to 8 weeks recording headache days, timing, severity, menstrual timing, sleep, meals, stress, caffeine, medications, and possible triggers. Common triggers include missed meals, dehydration, irregular sleep, alcohol, stress changes, and sometimes particular foods.

If migraine is frequent, prolonged, or disabling, a clinician may consider preventive treatment, for example:

beta-blockers
topiramate or another appropriate antiseizure medicine
certain antidepressants such as amitriptyline
CGRP-targeted medicines
botulinum toxin injections for selected people with chronic migraine

The choice depends on your health conditions, pregnancy plans, other medications, and side-effect risks.

C. Cluster headache

Cluster headache should be assessed by a doctor, preferably a clinician experienced in headaches.

Acute treatment: high-flow oxygen through a non-rebreather mask and certain triptans can be effective.
Prevention during a cluster period: medicines such as verapamil are commonly used under specialist supervision. Other treatments may be considered depending on the case.
Avoid alcohol during an active cluster period because it can provoke an attack in many people.

Inhaled oxygen is often effective for stopping a cluster attack. Neuroanatomy Through Clinical Cases, p. 165.

D. Medication-overuse headache

This is often missed. Suspect it if you have headaches on many days and use medication for headache often.

A practical safety rule is to avoid using acute headache medicines on more than 2 days per week unless a clinician has told you otherwise. Frequent use of painkillers, triptans, opioids, or combination products can cause a rebound cycle. The GOSH guidance on medication-overuse headache explains that the central treatment is reducing the overused medicine and using prevention where appropriate.

Do not abruptly stop opioids, sedatives, or certain other medicines without medical guidance.

When is a headache an emergency?

Seek emergency care now if there is:

A sudden, explosive “worst headache of life” that peaks within a minute
Headache after significant head injury
Headache with weakness, numbness, facial droop, confusion, fainting, seizure, new trouble speaking, walking, or seeing
Fever plus stiff neck, rash, drowsiness, or confusion
A new severe headache during pregnancy or soon after delivery
A new headache in someone with cancer, immune suppression, or use of blood-thinning medication
New or worsening headache after age 50
A progressively worsening pattern, especially with vomiting, personality change, or headache triggered by coughing, exertion, or lying down
A painful red eye with vision changes

A thunderclap headache requires immediate assessment because it can indicate bleeding around the brain or other vascular emergencies. Tintinalli’s Emergency Medicine, Table 165-1. The National Headache Pathway also recommends same-day emergency assessment for thunderclap headache.

When to book a routine medical appointment

Arrange a consultation if:

Headaches occur repeatedly or interfere with work, school, or sleep
You need painkillers more than twice weekly
The headache pattern has changed
Migraine attacks are frequent, severe, or prolonged
You may be pregnant, have kidney/liver disease, stomach ulcers, cardiovascular disease, or take blood thinners
You are unsure whether the symptoms fit migraine, tension-type headache, or another disorder

A clinician can identify the type, check blood pressure and neurological signs, review medication use, examine the eyes and neck, and decide whether tests such as imaging are actually needed.

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