My two month old

Lily • What goes around, comes around.

So over the last day or so my little one has had a stuffy nose, like it sounds wet and mucusy in there. Sometimes she’ll cough. I’ve been cleaning her nose out but it comes back to having mucus in it. she has no fever so I’m not sure if it has anything to do with us going from -33c to -9c then back to -37c within almost a two week time frame (we went down south for a vacation to see family). Has anyone got any ideas on how long this might last or what else I can do to help my little one?