Definition

1. Noun:
   • A severe, recurring type of headache: A cluster headache is a primary headache disorder characterized by extremely painful, one-sided attacks that occur in cyclical patterns or clusters.
   • Associated with autonomic symptoms: The headache is typically accompanied by symptoms on the same side of the face, such as eye redness, tearing, nasal congestion, or eyelid drooping.

Usage Examples

• Noun:
  • He was diagnosed with cluster headache, which causes excruciating pain around his eye.
  • The period when she experiences daily cluster headaches is known as a cluster period.

Advanced Usage

• "to suffer from cluster headache": to have the condition of cluster headaches.
  • Patients who suffer from cluster headache often feel restless during an attack.
• "a cluster headache attack": a single episode of the headache.
  • A cluster headache attack can last from 15 minutes to three hours.

Variants and Related Words

• Cluster (noun): In this medical context, it refers to a group of headache attacks occurring closely together over weeks or months.
• Headache (noun): A general term for pain in the head.

Synonyms

• Histamine headache: An older, less common term referencing the associated release of histamine.
• Horton's headache: An eponymous term sometimes used, named after Dr. Bayard T. Horton.

Related Phrases

• Cluster period: The timeframe, often lasting weeks or months, during which frequent headaches occur.
• Remission period: The headache-free interval between cluster periods.

Noun

1. a painful recurring headache associated with the release of histamine from cells