Any tips to clear 6 months old baby’s congestion

RR • Together since 2009 | Married since 2014 | 3 M/C`s | MTHFR | Rainbow baby born 07/02/17💗 #2 Due 12/21/20!!

My daughter will be 6 months old in a week and I’m a FTM so I don’t know what to do! She had a cold last week (coughing, sneezing, minor fever) the dr recommended Zarbees, Vapor Rub, and a humidifier. We did all 3 and the fever and cough are gone but she’s been really congested for 4 days now. Anyone have any tips on how to help her out?

TIA!

(Calling doc in the AM)