I don't know what correct levels would be, but my son is not a good eater or drinker. Do you have a suggestion? I usually, using an empty saline nasal bottle, put two sprays up each side of his nose, no more than twice a day.
So far, I haven't seen any benefits from doing it. When I look up his nose, it looks like the side of the nasal cavity is swollen or he just has a lot of meat in there.