Newborn sick

My poor baby has a cold / runny and stuffy nose... She still nurses but stops in the midst of it to breathe.. Shes been sleeping all day.. I wake her to feed her for about 10 mins or so & shes warm but doesnt have a fever.. I feel so bad...I dont know what to do.I know i have to let her little immune system fight it off but what else can I do? The humidifier hasn't helped.. I dont have saline solution and the bulb doesnt quite do much....