Common triggers embody allergens like pollen, mud mites, pet dander, as well as irritants resembling smoke and pollution. All three depend on the easy precept that salt water can skinny mucus, hydrate mucous membranes, and mechanically clear debris, pollen, and allergens. It also aids in flushing out irritants reminiscent of mud, pollen, and pollutants that set off allergies or sinus infections.