Reflex....: A cough is a reflex meant to clear foreign bodies, including bacteria and viruses, from your airways to prevent infection in your lungs. So, when you have an upper airway infection, including the common cold, a cough serves to keep this infection from getting to your lungs.
Answered 9/12/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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