Prevalin allergy nasal spray is clinically proven to prevent and treat the symptoms of hayfever before they can develop using the spray at the first sign of hay fever helps to receive relief from symptoms such as sneezing runny nose blocked nose and itchywatery eyes triple action formula prevalin allergy nasal spray triple formula ensures an effective treatment for hay fever patented formula deactivates pollen in the nose without irritating the nasal mucosa unique microgel formula forms