Phlegm, the mucus that comes ... can be due to viruses or bacteria. The cough is typically accompanied by other symptoms, like fever, chills, sore throat, muscle aches, fatigue, and a general ...

Medically reviewed by Mary Choy, PharmDThick mucus in the throat, also known as catarrh, is a symptom that often results from infection in the nasal passages, sinuses, lower airways, or lungs. It can ...