Best way to help baby with congestion???

Michelle • Baby 💗 born 6/11/17 & 💗 born 8/27/19

My 4 month old has fallen ill.. she is super congested, coughing, sneezing, fever. She is absolutely miserable. We are using saline drops, the nose frida, Tylenol and baby friendly mucus medication. What else can I do for my poor baby?!