Flixonase Allergy and Hayfever 24 Hour is an effective hayfever treatment and prevention. Flixonase provides relief from sneezing, runny nose, itchy nose, blocked nose, sinus pain and congestion.flixonase allergy and hayfever 24 hour is an effective hayfever treatment and prevention. flixonase provides relief from sneezing, runny nose, itch...