Nerivio has helped me so much! It's amazing how this little device has changed my life when it comes to migraine headaches! I hate to take prescription medication because of the potential side effects, but the pain would get so bad that I would. Sometimes the medicine wouldn't help so I'd have to go to the emergency room and have to be there for hours and the migraine cocktail they gave me would make me so tired that the rest of my day would be ruined. I don't have to worry about any of that with Nerivio! I take an over the counter headache medicine, then put on the device and all it takes is about 45 minutes and I'm headache free! I would've given 5 stars, but my only complaint is the $80 copay, which to many people is nothing, but is a lot to me