Our Physiological Seawater Nasal Spray contains saline. It can immediately penetrate the nasal cavity, wash away bacteria and pathogens, clear the nose, and clean the nasal environment. Its use is simple: open the protective cover of the spray dust cap, tilt your head slightly back, and gently press down on the nozzle; Wipe the nasal discharge with a tissue, wipe the nozzle with a tissue, and cover with a dustproof cap. Can be a full range of clean nasal cavity, relieve nasal congestion and other symptoms, relieve nasal discomfort.