Rhinolast nasal spray contains the antihistamine Azelastine hydrochloride. Antihistamines are designed to provide relief from the symptoms of allergic rhinitis. These symptoms include; congestion, sneezing, and a runny nose. Azelastine hydrochloride has proven effective against allergies to pollens (hay fever), as well as allergies to household irritants, such as dust mites and animal dander.
Allergic rhinitis occurs as a result of a hypersensitive immune system. When an allergen enters the nose, the immune system attacks it, mistaking the allergen for something more serious, such as an infection. This will trigger an immune response, which causes the body to produce extra mucus. This will lead to symptoms that include; congestion and sneezing. Allergic rhinitis is a very common condition. In The UK alone, it affects approximately 20% of people. It is not fully understood why these allergies develop. However, sometimes they run in families.