DS is on his second cold (thanks to having a toddler who attends DC in the house). Both times he never had drainage coming out of his nose. Ive always just could hear it in the back of his nose, like nasty post nasal drip. I still use saline and I can tell it breaks it up a bit. But I find it interesting that it doesn't ever drain out the front of his nose. Anyone else experience this? Is that normal for infants?