10 Signs of the Flu
Reviewed: Dr. Gromatzky
Flu Sign #2: Cough
A cough is often one of the first signs that we are sick. It is caused by the body deliberately trying to force out something harmful from the body, or by something that is irritating the throat area. In the case of the flu, the cough is the body trying to clear excess mucus that has built up in the throat as a result of the illness.
The mucus we are coughing up is itself in place to help trap pathogens and any other unwanted items. Once trapped in the mucus, they are then ejected by the force of the cough. While this helps individuals to overcome illnesses it is also one of the main causes of spreading them.
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