"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Having a congested chest can be uncomfortable to say the least. And when you’re feeling under the weather ...

Smoking can lead to brown mucus due to tar build-up in the lungs. Inhaling pollutants and toxins can cause brown mucus. Lung infections from bacteria and viruses can turn mucus brown. Mucus, a fluid ...

Congestion from cold and flu is the buildup of mucus in your nose, sinuses, or chest that causes a feeling of fullness or blockage. When you're dealing with congestion from a cold or the flu, you want ...

When you’re sick, you’ll often produce more phlegm, and might notice it’s thicker or a different colour: white, green, yellow or maybe even brown. What can this phlegm – also called mucus, snot, ...

In normal scientific terms, excessive mucus, or phlegm, is usually caused by infections like colds, sinus issues, allergies, smoking, chronic lung diseases like COPD, cystic fibrosis and ...