When blood from your nasal lining dries, it can mix with the mucus and turn brown. But brown mucus isn’t always because of blood. It could also be dirt, dust, or discolouration from inhaling smoke.

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.

The symptoms can include coughing up thick yellow, green, or brown phlegm. Seek medical attention if you think you have pneumonia and you are having difficulty breathing. Asthma is a long-term ...