Bronchitis is the inflammation of the bronchi. It may develop suddenly, following a head cold (acute bronchitis), or it may persist or return regularly for many years, causing progressive degeneration of the bronchi and lungs (chronic bronchitis). Certain people are more susceptible than others; Men are more of a target to bronchitis than women, out numbering them 10 to 1 the reasons are unclear. Of course smokers are 50 times more likely to get chronic bronchitis than non-smokers. Acute bronchitis is a bacteria or virus infection, often following a cold smoking. People who have acute bronchitis usually have a mild fever, soreness under breastbone, irritated by coughing. First they have a dry cough then the cough later brings up green and yellow mucus. The cough may persist to 4 to 6 weeks. Chronic bronchitis is produced by other chronic problem: sinusitis, smoking, TB, etc. The Bronchi becomes thick, inelastic, and accumulate mucus and pus in lower part of l...