A neck brace (or cervical collar) is a device that supports the head/neck and helps limit neck motion. Some of the main uses include:
• To support the cervical spine after injury (e.g., whiplash) or surgery so that further damage is prevented.
• To relieve neck pain or stiffness by taking strain off muscles and improving posture.
• To immobilize (or partially immobilize) the neck in cases where movement might worsen the condition.
For example:
“A cervical collar may help to take some strain off your neck muscles.”
The brace restricts head/neck movement and maintains alignment.