Nazohist Nasal Spray is a medication containing Azelastine hydrochloride (140mcg per actuation). This pharmaceutical agent is a second-generation antihistamine and mast cell stabilizer, primarily indicated for the relief of various allergic rhinitis symptoms such as sneezing, nasal itching, rhinorrhea (runny nose), and nasal congestion. It acts by inhibiting the release of histamine and other mediators from mast cells, thereby reducing inflammation and alleviating symptoms associated with allergic reactions. Nazohist Nasal Spray should be used as directed by a healthcare provider, and its safety and efficacy should be regularly monitored, especially in children and pregnant or lactating women. Common side effects may include headache, bitter taste, and dryness of the mouth and nose. Consult a healthcare provider for any concerns or adverse effects.