<unk>  is needed for clearing the airways of unwanted secretions.
Avoiding smoking, areas with air pollution, and proper hand hygienic practices can prevent one from acquiring<unk>  due to other causes.
Cough primary prevention
Occupational asthma primary prevention
Rhinitis secondary prevention
Pharyngitis primary prevention
Laryngitis primary prevention
Chronic bronchitis primary prevention
Pharyngitis secondary prevention
Acute bronchitis primary prevention