Research Study to Determine Sensitivity to Gentle Touch and Pressure During an Active Migraine Attack.

Inclusion Criteria: * Male and female patients aged 18-65, inclusive * Diagnosis of episodic migraine with or without aura. * Ability to read and understand an informed consent form and study procedures Exclusion Criteria: * Patients with abnormal sensory findings on examination, or any known neurological disease that may affect skin sensation (peripheral neuropathy, multiple sclerosis, stroke, etc). * Patients who suffer from headache (of any type) 15 or more days per month * Patients who are cognitively impaired, as determined by investigator * Patients with significant psychiatric disorder that may affect their understanding of the study protocol and/or their cooperation with the investigators. * Patients who had taken any acute pain medication (e.g. triptans, ergots, NSAIDs, opioids, butalbital, acetaminophen) for any indication within 12 hours prior to allodynia testing. * Patients with skin diseases that may cause abnormal skin sensation. * Patients who had been treated with a nerve block in the 4 week period prior to allodynia testing Patients who had been treated with Botulinum neurotoxin within the 4 month period prior to allodynia testing