Asthma is an inflammatory disorder (hyperreactivity of the airways) resulting in excessive mucus productions and airway spasm in susceptible people. Mucus production causes chest congestion and phlegm. Airway spasm causes coughing, chest tightness and wheezing. The most common triggers for asthma include: Respiratory viral infections, allergies and smoking. Managing asthma involves avoiding the triggers, treating …

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Chronic cough is usually defined as a cough that lasts for 6 to 8 weeks or longer. Most of the time, chronic cough has an underlying cause and needs to be evaluated. Upper Airway Cough In general, it is not life-threatening and is more of a quality of life issue. It is typically a dry …

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