A cervical collar is a medical device designed to support and immobilize the neck. It is commonly used to treat injuries, such as whiplash or fractures, and to provide stability after surgery. The collar helps to limit movement, allowing the neck to heal properly and reducing pain. Cervical collars come in various types, including soft and rigid versions. Soft collars provide gentle support, while rigid collars offer more stability for severe injuries. They are typically made from foam or plastic and are adjustable to fit different neck sizes, ensuring comfort and effectiveness during recovery.