One of the most painful types of headaches are cluster headaches, which manifest in cyclical patterns or cluster periods. You may experience severe pain in or near one eye on one side of your head during a cluster headache, which frequently wakes you up in the middle of the night.

Cluster periods, also known as bursts of frequent attacks, can last anywhere from weeks to months and are typically followed by remission periods during which the headaches subside. The absence of headaches lasts for weeks, perhaps even months, during remission.

Fortunately, cluster headaches are uncommon and not fatal. Cluster headache bouts might be less frequent and severe with the help of treatments. Additionally, medicines can lessen the frequency of your cluster headaches.

Although you may first have migraine-like nausea and an aura, cluster headaches typically occur suddenly and without warning. A headache’s typical warning signs and symptoms 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 (pallor) or flushing on your face, swelling around your eye on the affected side and drooping eyelid on the affected side.

Cluster headache sufferers are more inclined to pace or rock back and forth while sitting. Although they often affect one side, some migraine-like symptoms, such as sensitivity to light and sound, can accompany a cluster headache.

Although the precise cause of cluster headaches is unknown, the cluster headache patterns point to the hypothalamus, the body’s circadian clock, as a potential contributing factor.

Contrary to migraine and tension headache, cluster headache is typically not brought on by triggers such certain meals, hormonal changes, or stress. However, consuming alcohol could swiftly bring on a splitting headache once a cluster period starts. Because of this, many cluster headache sufferers abstain from drinking when they are experiencing a cluster.

The usage of drugs like nitroglycerin, a prescription used to treat heart disease, is another potential trigger.

At The Eye Center- Dr. Mahnaz Naveed Shah & Associates our team of eight ophthalmology subspecialists/ eye specialists, eye surgeons who are considered amongst the very best eye specialists in Karachi and in Pakistan, have the diagnostic and treatment capabilities to treat from the simplest to the most complex patients. We work hard to provide our patients with the best possible medical and surgical eye care, in a state of the art purpose built eye care facility. We offer the entire array of medical, laser and surgical treatments to help provide patients the best possible care in the most efficient, safe and ethical manner.

If you need an appointment, please contact us at 03041119544 during our working hours or leave us a WhatsApp message at +923028291799 and someone will connect with you. Walk-in appointments are also available for emergencies. We can also be reached through our web portal on

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