Complete Guide to Hemicrania continua
Everything you need to know about this condition
What is Hemicrania continua?
Hemicrania continua is a rare and chronic headache disorder characterized by continuous, one-sided headache with fluctuating intensity. It is a type of primary headache disorder, meaning that it is not caused by any underlying medical condition. The headache is typically worse on one side of the head, and can be accompanied by autonomic symptoms such as nasal congestion, eye watering, and eyelid drooping. According to the International Headache Society, hemicrania continua affects approximately 0.01% of the population.
Causes and Risk Factors
The exact cause of hemicrania continua is unknown, but it is believed to be related to genetic and environmental factors. Some studies suggest that hemicrania continua may be associated with abnormalities in the brain's pain processing pathways. Lifestyle factors such as stress, sleep disturbances, and certain foods or substances may also trigger or exacerbate symptoms. Additionally, hemicrania continua may be more common in women, and may be associated with other conditions such as depression and anxiety.
Signs and Symptoms
The symptoms of hemicrania continua can vary in severity and frequency, but typically include a continuous, one-sided headache that is worse on one side of the head. The headache can be mild, moderate, or severe, and can be accompanied by autonomic symptoms such as nasal congestion, eye watering, and eyelid drooping. Some people may also experience other symptoms such as sensitivity to light and sound, nausea, and vomiting. According to WHO guidelines, the diagnosis of hemicrania continua requires the presence of a continuous, one-sided headache for at least 3 months.
How is Hemicrania continua Diagnosed?
The diagnosis of hemicrania continua is based on a combination of medical history, physical examination, and diagnostic tests. The doctor will typically ask questions about the patient's symptoms, medical history, and lifestyle habits. A physical examination may be performed to rule out other conditions that may be causing the symptoms. Diagnostic tests such as imaging studies (e.g. MRI or CT scan) and lab work (e.g. blood tests) may also be ordered to rule out other conditions. According to NICE guidelines, the diagnosis of hemicrania continua should be made by a healthcare professional with expertise in headache disorders.
Treatment Options
The treatment of hemicrania continua typically involves a combination of medications, lifestyle modifications, and alternative therapies. Over-the-counter pain relievers such as ibuprofen or acetaminophen may be prescribed to manage mild symptoms. For more severe symptoms, prescription medications such as indomethacin or celecoxib may be prescribed. Alternative therapies such as acupuncture, massage, or physical therapy may also be recommended to help manage symptoms. In some cases, surgical intervention may be necessary to relieve symptoms.
Home Care and Self-Management
There are several things that you can do at home to help manage your symptoms. Keeping a headache diary can help you track and identify potential triggers. Stress management techniques such as meditation, yoga, or deep breathing exercises can also help reduce stress and alleviate symptoms. Regular exercise, healthy eating, and getting enough sleep can also help improve overall well-being. According to Mayo Clinic guidelines, it is also important to stay hydrated by drinking plenty of water and avoiding trigger foods or substances.
Prevention Strategies
While there is no sure way to prevent hemicrania continua, there are several things that you can do to reduce your risk. Maintaining a healthy lifestyle, including regular exercise, healthy eating, and getting enough sleep, can help reduce stress and alleviate symptoms. Avoiding trigger foods or substances, and staying hydrated by drinking plenty of water can also help. According to WHO guidelines, it is also important to seek medical attention if you experience any warning signs or red flags such as sudden and severe headache, double vision, or weakness or numbness in the face.
When to See a Doctor
If you are experiencing any warning signs or red flags such as sudden and severe headache, double vision, or weakness or numbness in the face, it is important to seek medical attention immediately. You should also seek medical attention if your symptoms worsen or if you experience any new or unusual symptoms. According to NICE guidelines, it is also important to seek medical attention if you are experiencing any symptoms that are affecting your daily life or overall well-being.
Living with Hemicrania continua
Living with hemicrania continua can be challenging, but there are several things that you can do to manage your symptoms and improve your quality of life. Seeking support from family, friends, or a support group can help you cope with the emotional and psychological aspects of the condition. Staying informed about the condition, and working closely with your healthcare provider to develop a treatment plan can also help. According to Mayo Clinic guidelines, it is also important to take care of your overall health and well-being, and to seek medical attention if you experience any warning signs or red flags.

Written by Dr. Dinesh Kumar
MD, Specialist Physician • 15+ Years Experience