A health expert has issued a warning about the four urgent signs to look out for in your cough that could indicate a more ...

Pertussis is caused by bacteria that live in the mouth, nose and throat ... feel exhausted or turn blue from lack of oxygen. Whooping cough is usually treated with a multi-day course of antibiotics.

If you have caught a cold or cough and are unable to breathe ... breathing through the mouth can help get oxygen to your muscles faster. However, doing it while sleeping, doctors say, can lead ...

Her cough was so severe that she turned blue around the mouth, and her oxygen dropped to extremely low. A week after being admitted to Ochsner, she was diagnosed with pertussis. As her condition ...