You typically do not notice phlegm until your body starts to produce too much of it due to an infection. Your airway glands create thicker and stickier mucus to help fight off harmful germs.
When a virus moves from your nose down your respiratory tract, your body tries to defend itself by making more mucus. Sometimes it makes too much, and the cilia on the airways can’t push it out, said ...
While we all deal with eye crust, it can be a sign of something serious. “If your eyes are matted shut in the morning and you are not able to open them, please call an eye care provider,” says Dr.