What Causes Pneumonia and Who Is at Risk? Pneumonia symptoms can vary widely from a mild flu to a life-threatening emergency. Cough, fever, and fatigue are common, but you should seek help for more ...

Most colds go away within 7–10 days, but some symptoms, like coughing and congestion, can linger for weeks. How long a cold will last depends largely on your age, general health, and the type of cold ...