Chronic Headache

Chronic daily headache refers to a broad range of headache disorders occurring greater than 15 days a month- in many cases daily- for a period of atleast 3 months. The primary variety of chronic headache is further divided into two distinct categories: headache lasting more than 4 hours and headaches lasting less than 4 hours.ch

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The primary types of Chronic headache with average duration of greater than 4 hours include:

  • Chronic migraine or transformed migraine
  • Chronic tension type headache
  • New daily persistent headache
  • Hemicranias continua

The Primary types of Chronic headache with duration of less than 4 hours include:

  • Chronic cluster headache
  • Chronic paroxysmal hemicranias
  • SUNCT (short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing)