How old do I have to be to use Cove? October 28, 2021 14:06 Updated Follow You must be 18 or older to use Cove. If you are 18 or older, you can get started with Cove here. Related articles Can I use insurance to pay for Cove? Am I eligible to use Cove? Can I use my own pharmacy? Can I take Nurtec® ODT alongside my preventive migraine medication? What types of headaches does Cove treat?