When do you need to see a doctor for a cough? 3.5 yr old has chesty cough, had fever and runny nose.

Depends: A cough is a natural protective response that helps one remove accumulated mucus from deep within the lung. When a kid maintains their normal level of activities, rest and diet it is unlikely anything bad is happening. If the kids appetite/play declines and sleep becomes irregular, there may be a problem starting.If your "mommy" sense is bothered, seek an evaluation or you wont sleep well.