Bronchitis is an inflammation of the lining of the bronchial tubes, the airways that connect the trachea (windpipe) to the lungs. Bronchitis can be acute or chronic. An acute medical condition comes on quickly and can cause severe symptoms, but it lasts only a short time (no longer than a few weeks). Chronic bronchitis, on the other hand, can be mild to severe and is longer lasting -- from several months to years. The former is treated with herbs for dispersing the lungs and checking cough; the later with herbs for warming the kidney and strengthening the spleen and resolving phlegm.
Heat-phlegm
Cold-phlegm
Heat-asthma
Cold-asthma