Useful resources and further reading
International Headache Society ICHD-3 (beta) draft headache guidelines - https://www.ichd-3.org/
The Migraine Trust - https://www.migrainetrust.org
OUCH UK - Organisation for the Understanding of Cluster Headache - https://ouchuk.org/
NICE CKS Headache assessment - https://cks.nice.org.uk/headache-assessment
S Miller et al. ‘Neurostimulation in the treatment of primary headaches’. Pract Neurol. 2016 Oct; 16(5):362-75 - http://pn.bmj.com/content/16/5/362.long
Cefaly - http://www.cefaly.co.uk/en