What is a cluster headache?

Cluster headaches are characterised by severe, strictly one-sided pain centred around one eye, accompanied by autonomic features on the same side — including eye redness and watering, drooping eyelid, nasal congestion, and facial sweating. They occur in clusters lasting weeks to months, often at the same time each day or waking the person at night. They are considered among the most painful conditions known. Urgent neurological assessment is warranted for first presentation.

What conventional treatments are available?

High-flow oxygen (100% at 12–15 litres per minute via non-rebreather mask) and subcutaneous or intranasal sumatriptan are the most evidenced acute treatments. Verapamil is the most commonly used preventive medication. Cluster headache requires specialist neurological input for diagnosis and management — self-management without a confirmed diagnosis is not recommended.

Can complementary therapies help cluster headaches?

Evidence for complementary approaches specifically in cluster headache is limited. Melatonin has some evidence as an adjunct preventive. Addressing sleep regularity is relevant as cluster periods often synchronise with sleep cycle changes. Some people report benefit from acupuncture, though robust trial evidence is lacking. Any complementary approach should be coordinated with neurological care.

What lifestyle factors matter in cluster headache?

Alcohol is a reliable trigger during active cluster periods — even small amounts. Smoking is associated with higher prevalence and severity. Altitude changes, strong smells, and bright light can trigger attacks in susceptible individuals during a cluster period. These triggers typically do not apply outside active cluster periods.

Neurologicallow Risk

Cluster headache

Cluster headaches are intensely painful, unilateral headaches that occur in cyclical patterns (clusters), among the most severe pain conditions known. While primarily requiring specialist neurological management, breathi

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Reviewed by Dr. Ava Gardner · Integrative Medicine Researcher26 March 2026Research-supported

Quick answer

Do any of these feel familiar?

Cluster headaches are among the most intensely painful conditions known — often described as a searing, burning, or drilling pain focused around or behind one eye
The pain typically comes on very suddenly, reaches its peak within minutes, and lasts from 15 minutes to three hours
During an attack, many people find it impossible to stay still, pacing or rocking in an attempt to manage the pain
The affected eye often becomes red, teary, and the eyelid may droop
Attacks occur in clusters — multiple times a day for weeks or months — then disappear entirely for months or years

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Tension Type Headache

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