Maintenance and cure is a maritime employer’s obligation to pay an injured seaman’s basic living expenses (maintenance) and medical treatment costs (cure) until the seaman reaches maximum medical improvement.
This obligation applies even if the seaman was partly at fault for the injury. Serious misconduct, like being drunk on duty, can cut it off, and so can deliberately hiding a related prior medical condition the employer asked about at hiring. It’s one of the most important protections an injured seaman has, and it’s separate from any negligence claim under the Jones Act.