Cluster headaches aren’t that common, but they are extremely painful. And they often occur during the fall season.

A cluster headache is a rare headache disorder that differs from a typical migraine or headache. Less than 1% of the population have cluster headaches, but for those people, it’s an intense experience because the headaches come on fast and hit hard.

Imagine being awakened abruptly by excruciating head pain that reaches peak intensity in seconds.

“Then (there are) 15 to 20 minutes of this pain, which is so severe that patients often cannot sit still. They have to get up, pace around, maybe push on the head or bang things against the head. And then, again, it shuts off like a light switch,” explained Dr. Carrie Robertson, a Mayo Clinic neurologist.

What Robertson is describing is a cluster headache attack.

“For patients who struggle with this, for six to 12 weeks, they may have multiple headaches per day ― maybe one to eight headaches per day. And then, just as abruptly as the cycle started, the cycle will shut off. And they might be headache-free for months or even a year before another cycle starts,” Robertson said.

The attacks often occur at the same time each day, most often at night, and usually one to two hours after bedtime. Cluster periods usually are followed by remission periods when the headaches stop. Remission periods can last from months to years.

Many times, cluster headache will occur without a trigger. However, a cluster headache tends to be seasonal.

“The fall is one of the seasons that we frequently see patients with their cycles starting,” she said.

There’s no cure for cluster headaches, but treatments are available to decrease the severity of pain, shorten the headache period and prevent the attacks.

“We’ve made a lot of progress in the past 10 years, but we’re actively pursuing additional treatments on an ongoing basis,” Robertson said.

Common signs and symptoms during a cluster headache include:

  • Excruciating pain that is generally situated in, behind or around one eye but may radiate to other areas of your face, head and neck
  • One-sided pain
  • Restlessness
  • Excessive tearing
  • Redness of your eye on the affected side
  • Stuffy or runny nose on the affected side
  • Forehead or facial sweating on the affected side
  • Pale skin or flushing on your face
  • Swelling around your eye on the affected side
  • Drooping eyelid on the affected side