Nasal spray efficient way of transporting drugs with potential use in crossing the blood–brain barrier. Antihistamines work by competing for receptor sites to block the function of histamine, thereby reducing the inflammatory effect. Antihistamine nasal sprays include: Corticosteroid nasal sprays can be used to relieve the symptoms of sinusitis, hay fever, allergic rhinitis and non-allergic (perennial) rhinitis. They can reduce inflammation and histamine production in the nasal passages, and have been shown to relieve nasal congestion, runny nose, itchy nose and sneezing. Side effects may include headaches, nausea and nose bleeds. Corticosteroid nasal sprays include: Influenza vaccine is available in the form
Post-nasal drip recommended if the PND is caused by allergies. First-generation antihistamines can have side effects including drowsiness however. Nasal steroid treatments, such as fluticasone propionate, may also provide relief. Decongestants such as Sudafed cause a reduction in membranes through the tightening of blood vessels which resultantly limit PND. Staying hydrated and avoiding alcoholic and caffeinated products which worsen symptoms is key. Avoiding cigarette smoke is also recommended because it can cause increased discomfort if inhaled. Drinking more fluids, especially those that can thin mucous (such as hot liquids), can be beneficial. Nasal irrigations such as saline-based nose sprays can be used