Bio3 Flus and Colds 25 tea filters. To irritation of the mucous membranes of the mouth, throat, bronchial tubes and associated when there is dry cough. In general to relieve colds and flu states. It has no known contraindications. To prevent and treat minor ailments of the respiratory system. Increases the body's defenses. We recommend drinking 2 cups a day, preferably between meals. Put in a cup or teapot, a tea bag per person, pour on the same water to a boil and allow to rest 3 minutes, sweeten to taste and then drink it. It can also be cold. Echinacea purpurea high in phytosterols and polysaccharides.