Bronchitis?

So my daughter has been congested for 2 weeks during the night and early morning and she went doctor twice and they just brushed it off as a virus, fast forward last night and I started to hear a bit of phlegm and wheeze when she was sleeping but nothing major so I took her doctor today and she said she has bronchitis? I am a bit confused though because she said I can leave her and watch her at home or take her hospital now, I said to stay and watch her..isn't bronchitis more obvious then just a bit of cough and chest wheeze? She's fine otherwise tho so unsure if I should go hospital?