Symptoms

By definition, chronic daily headaches occur 15 days or more a month, for longer than three months. True (primary) chronic daily headaches aren't caused by another condition.

There are short-lasting and long-lasting chronic daily headaches. Long-lasting headaches last more than four hours. They include:

• Chronic migraine
• Chronic tension-type headache
• New daily persistent headache
• Hemicrania continua

Chronic migraine

This type typically occurs in people with a history of episodic migraines. Chronic migraines tend to:

• Affect one side or both sides of your head
• Have a pulsating, throbbing sensation
• Cause moderate to severe pain

And they cause at least one of the following:

• Nausea, vomiting or both
• Sensitivity to light and sound

Chronic tension-type headache

These headaches tend to:

• Affect both sides of your head
• Cause mild to moderate pain
• Cause pain that feels pressing or tightening, but not pulsating

New daily persistent headache

These headaches come on suddenly, usually in people without a headache history. They become constant within three days of your first headache. They:

• Often affect both sides of your head
• Cause pain that feels like pressing or tightening, but not pulsating
• Cause mild to moderate pain
• Might have features of chronic migraine or chronic tension-type headache

Hemicrania continua

These headaches:

• Affect only one side of your head
• Are daily and continuous with no pain-free periods
• Cause moderate pain with spikes of severe pain
• Respond to the prescription pain reliever indomethacin (Indocin)
• Can become severe with development of migraine-like symptoms

In addition, hemicrania continua headaches are associated with at least one of the following:

• Tearing or redness of the eye on the affected side
• Nasal congestion or runny nose
• Drooping eyelid or pupil narrowing
• Sensation of restlessness

When to see a doctor

Occasional headaches are common, and usually require no medical attention. However, consult your doctor if:

• You usually have two or more headaches a week
• You take a pain reliever for your headaches most days
• You need more than the recommended dose of over-the-counter pain remedies to relieve your headaches
• Your headache pattern changes or your headaches worsen
• Your headaches are disabling

Seek prompt medical care if your headache:

• Is sudden and severe
• Accompanies a fever, stiff neck, confusion, seizure, double vision, weakness, numbness or difficulty speaking
• Follows a head injury
• Gets worse despite rest and pain medication