Can anyone give me any suggestions on how to help my one month old baby who has a cold ? She has the…

Can anyone give me any suggestions on how to help my one month old baby who has a cold ? She has the stuffy/ congested nose , coughing, not feeding very good & mucus... I'm currently using baby Vicks on her feet & chest & cleaning out her nose with the nasal bulb & using saline drops

Anything else that might be helpful.?