cough and nasal congestion
"Yep, I took ONLY 1 Mucinex D almost 24 hours ago for the 1st time and I'm still up. During the 1st 12 hours I didn't sleep a wink because I took this pill right before bed. My nose was dripping the whole night. This thing definitely unclogged my sinuses without the uncomfortable burning sensation of inhaling and the pain behind my face. My sinus relief lasted the whole 12 hours! I kept thinking it would wear off sooner. Throughout the day I haven't stopped sneezing and it's a scary sneeze, as in a loud scream, I've been scaring people all day. This is not my normal/typical sneeze. I usually sneeze like a silent little bunny! This is how I found this website to find out what this sneezing is all about. Doctor prescribed."