Otrivin menthol used by cold with blocked nose past, the laws by sinusitis. Otrivin menthol works by to retractable dè small veins in it raised nasal mucosa past, the laws on improved airflow. Effect joins in during of one couple minutes past, the laws goods in up to 10-12 hour.Should not given to children under 12 year without doctor officer.In gaskets with medicine available one patient instructions, as you always should read carefully, before you takes medicine. If you is in doubt, about you must use medicine, should you contact own doctor.Eventually updated d. 22 11-2024.