Winter is peak respiratory illness season. While colds and the flu tend to spread like wildfire at this time, other illnesses also can spread quickly and cause unpleasant symptoms. Bronchitis is an inflammation of the bronchial tubes, which carry air to and from your lungs. It can be either acute or chronic, with symptoms often overlapping between the two. If you are experiencing persistent coughing, wheezing, or mucus production, you might have bronchitis. Other common ...