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.
By Dr. Harold Katz-Bad Breath Expert. Post-nasal drip (PND) is described as the excessive mucus that runs down the back of the nose and into the throat. There are many issues that are known to cause post-nasal drip and include but are not limited to allergies, colds, influenza, sinus infections, and sinusitis.