cough and nasal congestion
"I have suffered from allergic rhinitis all my life: dry swollen sinus; sinus pressure; headaches; blurry vision; dizziness; lethargy; all sorts of cognitive problems because of the lack of oxygen to my body and brain due to thicken mucus in my respiratory system; not to mention frequent bacterial infections due to accumulated mucus secretions. I had tried every other medicine under the sun. Mucinex has taken all that away and my quality of life has improved 150%.  I strongly recommend Mucinex for those with sinus problems due to allergic rhinitis, or anyone who suffers from sinus any sort of respiratory congestion period."