The NaCl 0.9% preparation is recommended for infants, children and adults: for nasal and eye hygiene for cleaning wounds for rinsing ears for diluting inhalation products For nasal hygiene: 1 to 6 times a day, as needed. For eye hygiene: Use as a rinse or eye cleanser. For cleaning wounds: Wash the wound using the entire contents of one vial. For ear hygiene: The content of 1 vial is sufficient to wash both ears. Comments Due to the risk of rapid bacterial growth, the vial should not be stored for more than 24 hours after opening.