A cough is a natural reflex that protects your lungs.1 When we breathe in, certain particles known as irritants (e.g. dust and dirt), enter our body together with the air.2 The body automatically responds by clearing away these particles through coughing.3
An occasional cough is normal and healthy.3 However, if your cough is persistent or is accompanied by other symptoms such as runny nose, acid reflux, shortness of breath, chest pain and increased mucus production, it is most likely a sign of an ongoing illness and needs medical attention.3
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