Nasal mucus propels into the nasopharynx and is swallowed for disposal into the stomach. In the child this course directs the mucus with its bacteria, debris and foreign matter over the adenoids where lymphocytic defenses can act. The deep crypts and rugae of the adenoids create a larger surface area for greater effect in order to defend the body With a virus infection, the cilia are slowed down by the virus chemicals. This allows bacteria that normally would be swept away by the cilia to enter the body. Therefore, anything you can do to encourage good cilia movement is helpful.
Hot tea is good.
It has an advantage over saline in that there are no preservatives such as benzalkonium and the mixture is buffered to avoid any burning sensation. The refillable spray bottle it comes with can be used for spray, drops or to irrigate or wash. Without the burning, this solution can be used regularly by kids. The saline goes in one side of the nose and out the other. This is a natural way of healing the sinus condition.