Validation of a Questionnaire for Allodynia in Migraine.

Migraine is very frequent (15% of the general population). During attacks, many subjects with migraine have allodynia (pain induced by normally non-painful stimuli), photophobia (hypersensitivity to light), phonophobia (hypersensitivity to sound) or osmophobia (hypersensitivity to odours). The goal of the present study is to validate a new questionnaire made of 4 parts evaluating the presence of these 4 types of hypersensitivity, both during or between migraine attacks. It will allow to look for associations of these 4 symptoms and association of hypersensitivity with patients' or migraine's characteristics.