Oh Jase
From what I've just read mate this can clear up pretty much on its own with some help med wise to just make baby feel more comfortable & croup is said to often be mild where child will recover quickly & of course him being taken care of in the best possible place. As a parent of a child having this though I can't imagine being too calm. Google 90% of the time is not your friend in such situations.
My heart was in my mouth when I started reading this. Just tell the kiddies Adam has a little cough and the doctors are helping him get better sooner if you don't want to go into much detail as it could upset them - whatever feels right Jase.
Thoughts with you all I hope Layla is ok - try to calm down yourself - & my thoughts with Adam for the day .... hope he feels brighter very very soon.