A '''cough''' is a sudden expulsion of [[air]] from the [[lungs]] that clears the air passages. It may indicate a respiratory infection or [[bronchitis]] or [[pneumonia]] or [[tuberculosis]]. Smokers may cough very often. Coughs in children are common, and usually accompany many of the normal childhood illnesses. A cough that continues for several days, or increases in severity, should be immediately checked by a [[physician]] to rule out other [[disease]]s. Cut back or eliminate dairy products in children that have a lot of mucus with their coughs, as dairy often adds to the production of mucus.
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A '''cough''' is a sudden expulsion of [[air]] from the [[lungs]] that clears the air passages. It may indicate a respiratory infection or [[bronchitis]] or [[pneumonia]] or [[tuberculosis]]. Smokers may cough very often. Coughs in children are common, and usually accompany many of the normal childhood illnesses. A cough that continues for several days, or increases in severity, should be immediately checked by a [[physician]] to rule out other [[disease]]s. It is recommended that children that have a lot of mucus with their coughs cut back or eliminate dairy products from their diet, as dairy often adds to the production of mucus.