Still trying the product. The
Still trying the product. The main question is whether my headaches are vagus nerve-related. The Cefaly device is OK overall; it does work as described but is more wonky than I would like. A single button turns it on, designates the time frame of 20 or 60 minutes, and controls the strength of vibration. So I'm doing long presses, short presses, etc. , and it's hard to know what's working. Furthermore applying pressure to the device when applied to the forehead is also awkward because the forehead isn't completely flat. While the instruction booklet is thorough, it isn't concise and therefore could really be much simpler to navigate.