Acute bronchitis is caused in most cases by a viral infection and may begin after you develop a cold or sore throat. Bronchitis usually begins with a dry cough. After a few days it progresses to a productive cough, which may be accompanied by fever, fatigue, and headache. The cough may last up to several weeks. If not treated acute bronchitis can progress to pneumonia.Chronic bronchitis is caused in most cases by exposure to tobacco smoke or other irritants. As a result, the airways produce lots of mucus. Inflammation and extra mucus reduce air flow and cause severe coughing and spitting up of phlegm. Phlegm production and inflammation over many years may lead to permanent lung damage and cause disability or even death.If you have the Symptoms of Bronchitis--Sore throat, we would say herbal medicine is a safe and effective form of treatment. At TCM Window, we offer relaxing treatments and expert guidance through the whole process. We specialize in different kinds of chronic and difficult miscellaneous diseases, we offer the best possible care in a peaceful and welcoming environment. If you would want our expert to create a TCM diagnosis, please fill out the health form as requested.