I'd like to share some resources that have been immensely helpful in managing daily migraines. Firstly a set of mindfulness meditation tapes by Jon Kabat-Zinn, an MIT medical professor who has applied Buddhist meditation practices to the treatment of chronic pain. He co-authored a book'The Mindful Way through Depression' which has also been valuable.
A different approach, ACT therapy, is based on mindfulness meditation and is outlined in a book by Dr Russ Harris, 'The Happiness Trap. Stop Struggling, Start Living'. I hope they help you.