I'm dealing with a cold that originally started in my sinuses, but now it's moved down to my chest. I've got a lot of chest congestion and it's getting hard to breathe at times. I'm constantly coughing up phlegm, and sometimes I just can't seem to get relief from the coughing. What can I do to alleviate these symptoms?

I recommend taking an over-the-counter medication like Mucinex DM (guaifenesindextromethorphan) to help with chest congestion and to loosen mucus. The usual dosage is 1-2 tablets every 12 hours. Additionally, you can try using a humidifier to help with breathing and staying hydrated to help loosen the mucus. If symptoms persist or worsen, please seek medical attention.