Sick baby

My daughter is 6 weeks old and last week we found out that she has a viral infection. Doctor said her lungs were clear and no wheezing. Last night we noticed she was wheezing and her lungs sound like they're rubbing a little bit. She doesn't wheeze when she's asleep.. wanting to make an appointment tomorrow with her pediatrician, but is there anything I can do right now? We have a humidifier but I don't know what else to do? Would baby Vicks help? I just want her to feel better :(