Acute bronchitis most commonly occurs after an upper respiratory infection such as the common cold or a sinus infection. You may see symptoms such as fever with chills, muscle aches, nasal congestion,

Smoking Exposure to high levels of second-hand smoke Working in a stuffy atmosphere Use of drugs Weather changes, such as too much pollution, fog or dusty air High doze of medicines Improp

Causes Acute bronchitis The same viruses that cause colds often cause acute bronchitis. But you can also develop noninfectious bronchitis from exposure to your own or someone else's tobacco smoke an