Because so many docs know very little about Cluster, it's important for you to learn as much as you can.
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Cluster headache.
From: Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

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(Orphanet Journal of Rare Diseases)
[Easy to read; one of the better overview articles I've seen. Suggest printing the full length article--link, line above--if you are serious about keeping a good medical library on the subject.]
Leroux E, Ducros A.
ABSTRACT: Cluster headache (CH) is a primary headache disease characterized by recurrent short-lasting attacks (15 to 180 minutes) of excruciating unilateral periorbital pain accompanied by ipsilateral autonomic signs (lacrimation, nasal congestion, ptosis, miosis, lid edema, redness of the eye). It affects young adults, predominantly males. Prevalence is estimated at 0.5-1.0/1,000. CH has a circannual and circadian periodicity, attacks being clustered (hence the name) in bouts that can occur during specific months of the year. ALCOHOL IS THE ONLY DIETARY TRIGGER OF CH, STRONG ODORS (MAINLY SOLVENTS AND CIGARETTE SMOKE) AND NAPPING MAY ALSO TRIGGER CH ATTACKS. During bouts, attacks may happen at precise hours, especially during the night. During the attacks, patients tend to be restless. CH may be episodic or chronic, depending on the presence of remission periods. CH IS ASSOCIATED WITH TRIGEMINOVASCULAR ACTIVATION AND NEUROENDOCRINE AND VEGETATIVE DISTURBANCES, HOWEVER, THE PRECISE CAUSATIVE MECHANISMS REMAIN UNKNOWN. Involvement of the hypothalamus (a structure regulating endocrine function and sleep-wake rhythms) has been confirmed, explaining, at least in part, the cyclic aspects of CH. The disease is familial in about 10% of cases. Genetic factors play a role in CH susceptibility, and a causative role has been suggested for the hypocretin receptor gene. Diagnosis is clinical. Differential diagnoses include other primary headache diseases such as migraine, paroxysmal hemicrania and SUNCT syndrome. At present, there is no curative treatment. There are efficient treatments to shorten the painful attacks (acute treatments) and to reduce the number of daily attacks (prophylactic treatments). Acute treatment is based on subcutaneous administration of sumatriptan and high-flow oxygen. Verapamil, lithium, methysergide, prednisone, greater occipital nerve blocks and topiramate may be used for prophylaxis. In refractory cases, deep-brain stimulation of the hypothalamus and greater occipital nerve stimulators have been tried in experimental settings.THE DISEASE COURSE OVER A LIFETIME IS UNPREDICTABLE. Some patients have only one period of attacks, while in others the disease evolves from episodic to chronic form.
PMID: 18651939 [PubMed]
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See the PDF file, below.
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You have an excellent support group which I'd encourage you to join:
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Explore the buttons, to the left, starting with the OUCH site and its many links.
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Reading this site regularly will exposure you to many people with knowledge and skill in dealing with CH.
This fragmented message will give you some other leads for treatment in the U.K.:
Message: "Dyno", Tenby, Wales, UK, Aug 9, '09:
[Bob-excludes Wales per Dyno]
looking at their website it looks like a better alternative Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

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Why not ask to see the top man in the country - Dr. Manjit Matharu at UCL. Under Patient Choice - look at the link below - you have the right to choose who you see.
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and this - copied from the OUCH(UK) website
Quote:
You can ask your GP to refer you to one of our hospitals for treatment
Central to the government’s healthcare policy is that patients should be given the opportunity to be more involved in making decisions about their healthcare. If you and your GP agree that you need to be referred to see a specialist, then you have a choice of at least four local hospitals or clinics. Since May 2006, that choice has been extended. You can now also choose to go to any Foundation Trust in the country, including UCLH. Whether you’re from Cornwall or Camden, as a patient you now have the right to choose UCLH. You can ask your GP to refer you to one of our hospitals for treatment.
[Source: UCL website]
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City of London Migraine Clinic [and other types] Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

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