Chronic paroxysmal hemicrania digital illustration

Chronic paroxysmal hemicrania Save

ICD-10 code: G44.04

Chapter: Diseases of the nervous system

What is Chronic Paroxysmal Hemicrania?

Chronic Paroxysmal Hemicrania (CPH) is a rare type of headache disorder that causes intense, sharp pain on one side of the head. It is classified as a primary headache disorder, which means it’s not caused by an underlying condition or illness. CPH is more common in women than men, and typically begins in early adulthood.

Symptoms of Chronic Paroxysmal Hemicrania

The primary symptom of CPH is severe, stabbing pain on one side of the head. The pain is typically focused around the eye, and can last anywhere from a few minutes to several hours. Other symptoms may include:

  1. Eye redness and tearing
  2. Nasal congestion
  3. Drooping eyelid
  4. Sweating
  5. Facial swelling

These symptoms often occur in cycles, and can happen multiple times a day for weeks or months at a time. CPH is often misdiagnosed as other headache disorders, such as migraines or cluster headaches, so it’s important to see a doctor if you experience these symptoms.

Treatment for Chronic Paroxysmal Hemicrania

CPH can be treated with a variety of medications, including indomethacin, which is the most effective treatment for CPH. Other medications that may be used include topiramate, verapamil, and gabapentin. In some cases, nerve blocks or surgery may be recommended.

Lifestyle changes such as avoiding triggers, getting enough sleep, and managing stress can also help reduce the frequency and severity of CPH attacks.


Chronic Paroxysmal Hemicrania is a rare but extremely painful headache disorder. It’s important to see a doctor if you experience any of the symptoms of CPH, as early diagnosis and treatment can improve outcomes and reduce the risk of complications. With the right treatment plan, most people with CPH are able to manage their symptoms and lead fulfilling lives.