This device is so cool! My mom has been a long time sufferer of both hot flashes and migraines and almost nothing brings her relief. I saw this and thought it might the solution, or at least be able to help! And it does! She loves it. She says that it decreases both the length and severity of her hot flashes and she especially appreciates how discreet it is as before she was just using a portable fan which makes it pretty obvious what she's doing. It's easy to use and she also loves that it's rechargable! Shebjasnt been able to test its effectiveness on migraines yet, but I would assume it would be able to provide some relief for those as well. Overall, I'd say she's very happy with this product!