Up to 8 hour reliefimmediate cooling relief for migraine amp severe headacheready to use amp non medicinalkool 39n39 soothe migraine are soft gel sheets designed to provide immediate cooling relief to the severe discomfort associated with migraine and headacheskool 39n39 soothe migraine is safe to use with pain relief medication for maximum comfortready to use and with no need for refrigeration each gel sheet stays in place and provid