Nasal spray sodium chloride or sea water), isotonic (0.9% sodium chloride) and hypotonic (0.65% sodium chloride). Isotonic solutions have the same salt concentration as the human body, whereas hypertonic solutions have a higher salt content and hypotonic solutions have a lower salt content. Isotonic saline nasal sprays are commonly used in infants and children to wash out the thick mucus from the nose in case of allergic rhinitis. Hypertonic solutions may be more useful at drawing moisture from the mucous membrane and relieving nasal congestion. Natural nasal sprays that include chemical complexes derived from plant sources such as ginger, capsaicin and tea-tree
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