Bronchitis

Bronchitis is an inflammation of the lining of your bronchial tubes, which carry air to and from your lungs. Bronchitis may be either acute or chronic.

Acute bronchitis usually improves within a few days without lasting effects, although you may continue to cough for weeks. However, if you have repeated bouts of bronchitis, you may have chronic bronchitis, which requires medical attention. Chronic bronchitis is one of the conditions included in chronic obstructive pulmonary disease (COPD).

symptoms may include:

• Cough
• Production of mucus (sputum), which can be clear, white, yellowish-gray or green in color
• Fatigue
• Slight fever and chills
• Cause:
• Acute bronchitis is usually caused by viruses, typically the same viruses that cause colds and influenza. Antibiotics don't kill viruses, so this type of medication isn't useful in most cases of bronchitis.
  The most common cause of chronic bronchitis is smoking cigarettes. Air pollution and dust or toxic gases in the environment or workplace also can contribute to the condition