Ginger is valuable, but insufficient when used alone, in the treatment of migraine
In the publication summarized below, ginger is suggested as both an abortive (acute) and prophylactic (preventative) medication for the treatment of migraine.
My experience suggests that ginger, used alone, is unlikely to be effective, but that it can be valuable when used in combination with other herbal extracts.
J Ethnopharmacol. 1990 Jul;29(3):267-73.
Ginger (Zingiber officinale) in migraine headache.
Mustafa T, Srivastava KC.
Migraine is considered as a neurological disorder with little convincing evidence of the involvement of some vascular phenomenon.
Recent understanding of the mechanisms behind migraine pain generation and perception have considerably helped the development of modern migraine drugs. Most migraine drugs in use have side-effects and are prescribed with caution for a limited duration.
Ginger is reported in Ayurvedic and Tibb systems of medicine to be useful in neurological disorders. It is proposed that administration of ginger may exert abortive and prophylactic effects in migraine headache without any side-effects.