cough and nasal congestion
"I have had stuffy nose for over a month, been on 2 different antibiotics and various antihistamines and decongestants.  After second dose of Mucinex D, I can breath again.  Took first dosage four hours before bedtime, and a hit of Nyquil that night, and I slept great.  I'm sorry that I did not try this a month ago."