Steroid nasal sprays rarely cause side-effects. This is because they are applied directly to the nose and very little of this medicine is absorbed into the body. Therefore, they are much less likely to cause side-effects in other parts of the body. Occasionally, they cause dryness, crusting, and bleeding of the nose. If this occurs, stop it for a few days and then restart. There have been reports of nasal steroids possibly having an effect on behaviour, particularly in children. This is thought to be rare. However, a few people have reported hyperactivity, problems sleeping, anxiety, depression, and aggression.
Mortuaire, G., de Gabory, L., François, M., Massé, G., Bloch, F., Brion, N., ... Serrano, E. Rebound congestion and rhinitis medicamentosa: Nasal decongestants in clinical practice. (2013, June 1). Critical review of the literature by a medical panel. European Annals of Otorhinolaryngology, Head and Neck Diseases , 130(3), 137-144. Retrieved from https:///#!/content/playContent/1--S1879729612001378?returnurl=http:%2F%%2Fretrieve%2Fpii%2FS1879729612001378%3Fshowall%3Dtrue&referrer=https:%2F%2F .