Yesterday, I had a dry cough . When coughing, I felt like my lungs were raw in a small spot just right of center of my chest . This morning when I woke up, I was still lying in bed & heard what sounded like fizzy sounds (pop rocks) in my right chest. Nothing hurt. I haven t felt bad, and the cough went away for the most part today--no fizzy sounds during the day either. Tonight as I am sitting & resting, the fizzy sounds are back. I still don t feel bad, no fever , etc. What can I do to make the fizzy sounds go away?