cough and nasal congestion
"I was getting really sick but had to travel for work. My lungs hurt so badly I thought I was going to land myself in the ER. I got off a flight and grabbed some Mucinex at the airport and got to my hotel. I was having such a hard time breathing and was coughing so badly I hadn't slept in nights. I took the mucinex and slept all night long and woke up and got stuff out of my lungs and felt SO much better."