The temporal branch of the facial nerve is immediately above the eye.<unk>  is a long-term disease with symptoms lasting for longer than a year, either without remission or with remissions that last less than a month. In order to be diagnosed with<unk> , a patient needs to have had at least 20 attacks filling the following criteria: *Attacks of severe unilateral orbital, supraorbital, or temporal pain lasting between 2 and 30 minutes. *The headache needs to take place with one of the following: *Ipsilateral conjunctival injection and/or lacrimation *Ipsilateral nasal congestion and/or rhinorrhoea *Ipsilateral eyelid oedema *Ipsilateral forehead and facial sweating *Ipsilateral miosis and/or ptosis *Attacks need to occur more than five times a day for more than half of the time, although periods of lower frequency can occur. *The symptoms cannot be attributed to another disorder. *Attacks can be prevented completely by therapeutic doses of indomethacin. In addition, diagnosis of<unk>  requires that neuropathy of the supraorbital area in the temporal branch of the facial nerve be ruled out. Comparison to cluster headaches Though outwardly similar to cluster headaches,<unk>  is rather different, and the two headaches are not a subset of one or the other. Key differences include: *Different gender distributions –<unk>  is more common in women than men, with opposite occurring with cluster headaches. *CPH attacks occur more frequently, but are shorter. *CPH affects all over the head *Individuals with<unk>  are far more responsive to indomethacin than individuals with cluster headaches. *CPH attacks can be provoked by neck movement. *In a study conducted by Sjaastad, heating a patient's body will cause the painful side of the forehead to sweat more in<unk>  patients, while there will be less sweating on that side for those suffering from cluster headaches.
Chronic paroxysmal hemicrania
Trigeminal autonomic cephalgia
Trigeminal trophic syndrome
Trigeminal neuralgia
Atypical trigeminal neuralgia
Post-dural-puncture headache
Alternating hemiplegia of childhood
Sporadic hemiplegic migraine