A stuffy nose is often caused by the flu, allergies, or even pregnancy — here's how to handle your congestion based on what's ...

Chest mucus, or phlegm, is a common symptom that often accompanies colds, flu, allergies, or respiratory infections. While mucus plays a protective role in trapping dust and pathogens, too much of it ...

Clearing one’s throat is a common reflex to remove mucus and irritants — particularly during allergy season. But for some, it can become a habit that's hard to break, which can lead to stress and ...