Steroid nasal sprays are used to relieve congestion and inflammation which is related to allergies and sinusitis. They generally prevent symptoms by inhibiting the process which leads to inflammation and are also effective for retarding regrowth of nasal polyps which have been surgically removed.
Regular Websites
Presents information about nasal steroids and answers frequently asked questions. Also offers tips for using such sprays. - Nasal Disease Handbook
http://health.ucsd.edu/specialties/surgery/davidson/nasal/steroids.htm
Contains full prescribing information for flunisolide inhalers including a detailed description of the drug along with a diagram of the structure, indications and dosage, side effects, and user comments and reviews. - Rx List: Aerobid
http://www.rxlist.com/aerobid-drug.htm