Pollenase Hayfever Nasal Spray relieves the symptoms of allergies including hayfever and pet and dust mite allergies, such as sneezing, itchy nose and eyes or a blocked or runny nose. It contains beclometasone, a corticosteroid that works by reducing the in?ammation in the lining of your nose. nPollenase Hayfever Nasal Spray is suitable for adults aged 18 years and over. Beclometasone can take two to three days to have its full effect, so it is works best if you start using it two to three days before you expect to get symptoms, for example before the start of the pollen season, or if you know you are going to be in contact with pets that give you the allergy. It should then be used regularly to keep your symptoms under control.