cough and nasal congestion
"Thank goodness for Mucinex D!  One week ago, I woke up with severe nasal congestion and difficulty breathing which made getting any decent sleep impossible... I tried the other medications with minimal relief, so I decided to take a 600mg prescribed dose of Mucinex D (one pill) and was extremely pleased with how quickly it worked...  I drank 16oz of water then fell asleep with the ability to breathe easier...  Because my nasal problems have been recurring as soon as the medication wears off, I have resorted to taking a pill to get me through the day and again at night ever since...  The taste is unpleasant, but not enough to avoid taking it, because so far, it is the only medication that provides optimum relief with clear nasal passages!"