How long can colds last in kids?

So question…my daughter got sick about a week ago with the common cold. They said if the cough persists after 2 weeks to bring her back. She’s still coughing, but it’ll be tiny here and there. But she is still congested, but she feels and looks 100% better. Should I take her back in?

You answered your own question in the description… it has only been one week. They said if it lasts more than 2 weeks. Give it time! Especially since it’s minimal and she’s acting normal.
The stuff going around this winter is brutal and lingers.