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. It happens when pain-sensitive structures around the brain, including blood vessels, nerves, muscles, sinuses, and the tissues covering the brain, are irritated. The brain tissue itself does not feel pain.

Headaches are broadly divided into:

Primary headaches: the headache itself is the disorder. Examples: migraine, tension-type headache, cluster headache.
Secondary headaches: caused by another condition, such as infection, dehydration, head injury, medication overuse, eye disease, very high blood pressure, or, rarely, bleeding around the brain. Harrison’s describes this same primary versus secondary distinction and emphasizes clinical assessment to detect uncommon but dangerous causes. Harrison’s Principles of Internal Medicine, 22E, p. 17.

There is not one universal “cure.” Treatment depends on the headache type and cause. Many primary headaches can be controlled very effectively.

Common types of headache

Type	Typical features	Usual management
Tension-type	Mild to moderate, tight band or pressure on both sides of head; neck/shoulder tightness; usually no vomiting	Rest, hydration, regular sleep/meals, stretching, stress management, paracetamol/acetaminophen or an NSAID if safe
Migraine	Often throbbing and one-sided, moderate to severe; nausea, vomiting, sensitivity to light/sound; may worsen with activity; sometimes aura	Early treatment with an NSAID or paracetamol/acetaminophen, sometimes a triptan prescribed by a clinician; preventive treatment if frequent
Cluster headache	Extreme one-sided pain near/behind one eye, lasting about 15 minutes to 3 hours; watery/red eye, blocked/runny nostril, eyelid droop; attacks occur in clusters	Urgent medical assessment; high-flow oxygen and certain triptans may abort attacks; prevention, commonly verapamil, requires specialist supervision
Medication-overuse headache	Near-daily headache in someone frequently using painkillers or migraine medicines	Gradual or planned withdrawal of overused medication with a clinician’s advice; start a preventive plan if appropriate
Sinus-related headache	Facial pressure with clear evidence of sinus infection, such as fever, thick nasal discharge, and reduced smell	Treat the underlying infection/allergy. Many self-diagnosed “sinus headaches” are actually migraine
Secondary headache	New or unusual headache due to another illness or trigger	Treat the cause. Some require emergency testing and treatment

1. Tension-type headache

This is the most common primary headache.

Symptoms

Dull, pressing, tightening, or “band-like” pain
Often on both sides
Mild to moderate intensity
May involve scalp, neck, or shoulders
Usually not made much worse by normal activity
Nausea and severe light sensitivity are uncommon

What helps

Drink water and do not skip meals.
Rest your eyes and take breaks from screens.
Gentle neck and shoulder stretches, heat pack, massage, posture correction.
Regular sleep and exercise.
Relaxation methods, breathing exercises, or counseling when stress is a major factor.
An occasional simple pain reliever may help, but avoid repeated use.

Important: Using pain medicine too often can itself produce persistent headaches. As a practical rule, seek advice if you need acute headache medication on more than 2 days per week or have headaches on 15 or more days per month.

Recent systematic reviews suggest psychological and behavioral therapies can help some people with tension-type headache, though individual treatment should be tailored. See this 2025 systematic review.

2. Migraine

Migraine is more than a severe headache. It is a neurologic disorder that can cause disabling attacks.

Symptoms

Throbbing or pulsating pain, often one-sided but sometimes both sides
Moderate or severe pain
Nausea or vomiting
Sensitivity to light, sounds, or smells
Worse with routine physical activity
An aura in some people: temporary visual zigzags, flashing lights, tingling, or speech difficulty before or during the headache

During an attack

Treat early, when pain is still mild.
Rest in a dark, quiet room.
Fluids, sleep, cold pack to forehead or neck.
Paracetamol/acetaminophen or an NSAID such as ibuprofen may help if you can safely take it.
A clinician may prescribe a triptan for people with confirmed migraine. Triptans are not suitable for everyone, especially some people with cardiovascular or cerebrovascular disease.
Anti-nausea medicine may be prescribed when vomiting is significant.

Prevention Consider a medical review if migraine attacks are frequent, very disabling, prolonged, or acute medicine is not working. Prevention can include:

Regular sleep, meals, hydration, and aerobic exercise
Identifying personal triggers with a headache diary
Reducing excess caffeine and alcohol if they trigger attacks
Prescription preventive medicines, selected according to the person’s medical history. Options may include beta-blockers, topiramate, amitriptyline, certain CGRP-targeting medicines, or botulinum toxin for chronic migraine.

A diary recording date, duration, severity, associated symptoms, periods, sleep, food, stress, and medication use often helps identify the type and triggers.

3. Cluster headache

Cluster headache is uncommon but extremely painful. The pain is usually around one eye and comes in repeated attacks over weeks or months. The eye may water or become red, and the nostril on the same side can run or become blocked. People are often restless during attacks, unlike migraine, where people commonly want to lie still.

It needs clinician assessment because treatment is specific:

High-flow oxygen can stop an attack for many people.
A fast-acting triptan, often an injection or nasal form, may be used.
A preventive medicine, often verapamil, is commonly used but requires medical monitoring, including heart rhythm checks.

Do not try to manage suspected cluster headache solely with standard over-the-counter painkillers. The clinical picture in the medical textbook is severe one-sided pain behind the eye with tearing, nasal symptoms, and eye redness. Swanson’s Family Medicine Review, p. 56.

4. Medication-overuse headache

Frequent use of painkillers can turn occasional headache into chronic daily headache. This can occur with paracetamol/acetaminophen, NSAIDs, opioids, triptans, and combination headache medicines.

Clues

Headaches become more frequent or daily.
Medicines help briefly, then headache returns.
You repeatedly need medication to function.

Treatment

Discuss a structured medication withdrawal plan with a doctor or pharmacist.
Temporary worsening is common early in withdrawal.
Manage the original headache type with prevention and non-drug strategies rather than frequent rescue medication.

When a headache is an emergency

Seek emergency medical care now if you have a headache that:

Is sudden and explosive, reaching maximum severity within one minute, often called a thunderclap headache
Is the worst headache of your life
Follows a head injury
Occurs with weakness, numbness, facial droop, confusion, fainting, seizure, trouble speaking, loss of balance, or new vision loss
Occurs with fever, stiff neck, rash, or severe drowsiness
Starts during pregnancy or soon after delivery, especially with visual symptoms or high blood pressure
Begins after age 50 and is new or progressively worsening
Occurs in someone with cancer, HIV/immunosuppression, or use of blood-thinning medicine
Is new and different from your usual pattern, or steadily becomes more frequent or severe
Occurs with a red, painful eye and blurred vision/halos

A new thunderclap headache needs urgent evaluation because it can occasionally signal bleeding around the brain. The American Migraine Foundation’s red-flag guidance also advises prompt assessment for a sudden onset or important change in a familiar headache pattern.

Safe self-care summary

For a mild, familiar headache without warning signs:

Drink water and eat if you have missed a meal.
Rest in a quiet, dim room.
Use a cold or warm pack depending on what feels better.
Stretch the neck and shoulders, reduce screen strain, and sleep if needed.
Consider an occasional over-the-counter pain reliever only if it is safe for you and you follow the package directions.
Keep a headache diary if headaches recur.

Avoid NSAIDs such as ibuprofen or naproxen without professional advice if you have a history of stomach ulcer/bleeding, kidney disease, heart failure, are taking blood thinners, or are pregnant. Do not use aspirin for children or teenagers with a viral illness.

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