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Phlegm, or sputum, serves as a window into your respiratory health. Its colour can offer crucial clues about potential health conditions and help guide whether medical intervention is needed. Here’s ...

Nighttime congestion often involves a combination of environmental triggers and abnormalities of the sinus and nasal passages that lead to swelling of tissues and/or build-up of nasal mucus ... nausea ...

Postnasal drip occurs when mucus from your nasal passages drips down the back of your throat. The symptoms of postnasal drip include coughing and frequent throat clearing, a sore or scratchy throat, ...

A narrowing of the smallest airways in the lung (bronchioles) causes wheezing. This narrowing results from swelling caused by a virus. The respiratory syncytial virus (RSV) causes most bronchiolitis.

A narrowing of the smallest airways in the lung (bronchioles) causes wheezing. This narrowing results from swelling caused by a virus. The respiratory syncytial virus (RSV) causes most bronchiolitis.