Cough foamy sputum

Sputum is a secretion of the respiratory tract, and healthy people generally have sputum. However, if you have a respiratory disease, you can produce a lot of sputum after being infected by a pathogenic microorganism. Chinese medicine divides sputum into cold phlegm, wind phlegm, hot sputum, wet sputum and dry sputum. Chronic bronchitis in the elderly, the onset of insidious attacks, mostly from young and middle-aged, and a few onset in the elderly. Patients develop more cough and expectoration than in the cold season, especially in the morning. The sputum appears as a white mucus foam.