Can the coils be used on the head? Particularly for Migraines? For the Migraines, it is best to place the coils on the forehead or on the temples (one right and one left)?

Yes, the coils can be used for migraines, and it is very good for it. It is better to place the coils on the temples, touching each other to ensure the smooth side of both coils facing your forehead. If the pain location is localized, it is better to“pancake” the coils one on top of the other and place them over the site of the pain.