Xylitol is like a soap for the nasal cavity, which can clean and inhibit the growth of bacteria in the nasal mucosa, effectively activate the antibodies on the surface of the respiratory tract, reduce the adhesion of bacteria to the surface mucosa of the respiratory tract, and inhibit the reproduction of bacteria. Contains xylitol mixture (no preservatives and iodine) No irritation or burning pain Can help relieve sinus inflammation caused by allergies and infections