Thank you! Yes I'm doing those already :)
Did you get a humidifier for your little one? If so, now would be a perfectly good time to open it and put it to use! You could also turn a super hot shower with the bathroom door closed and just sit in the room to take in some steam for 10-15 minutes. And, of course, try sleeping a little more propped up than usual.
Saline nasal drops can also do wonders in clearing you out! Use several times a day for better results!
Hope I could help!