Carbon Copy (software) Carbon Copy was an early remote control and file transfer software for DOS and Windows published by Microcom. It allowed remote access to a computer via dial-up modem connection.
A viral infection (the common cold) is the most common cause of a stuffy and/or runny nose, but allergies, influenza, and sinus infections also may cause these symptoms. Less commonly, anatomical obstructions (e.g. a deviated nasal septum, foreign bodies) may lead to nasal congestion.
Post Nasal Drip occurs when excessive mucus is produced by the nasal mucosa. The excess mucus accumulates in the throat or back of the nose. It can be caused by rhinitis (allergic or non-allergic) or sinusitis (acute or chronic). The term post in POST nasal drip refers to the BACK OF or BEHIND the throat. There is a key connection between Post Nasal Drip and bad breath.