Relēver is a NEW drug-free approach to tension headaches and pain in the head, neck, and jaw. 90% of all headaches are tension-related and can usually be traced back to tension in the head, neck and jaw…it’s all connected. Traditional pain medication can provide temporary pain relief but does not address the root of the problem: tension. Relēver is a new device that stretches the jaw muscles to help relieve tension and pain in the head, neck and jaw.