Ngh?t m?i v? ?êm là tình tr?ng r?t ph? bi?n ?nh h??ng tr?c ti?p ??n ch?t l??ng gi?c ng?. Lâu…Suggested dose for Grown ups and for youngsters in excess of twelve several years of age utilizing nasal spray: use just one spray into each nostril one to thrice every day if necessary. Usually do not make use of the spray for periods of more than 7