To clear blocked stuffy noses rhinodoron is a natural nasal spray that comes as a neat little medical device to help clear a blocked stuffy nose when you have a cold or are suffering from an allergy such as hayfever suitable for babies from the age of 3 months suitable for vegans to clear blocked stuffy noses rhinodoron is a natural nasal spray that comes as a neat little medical device to help clear a blocked stuffy nose when you have a cold or are suffering from an allergy such as hay