Medicare Part B â Your Medical Coverage. Part B pays for a portion of your doctor visits, some home health care, medical equipment, outpatient procedures, rehabilitation therapy, laboratory tests, X-rays, mental health services, ambulance services and blood.
Yellow phlegm is normally a sign of an infection, or a case of the common cold. Greenish or brownish phlegm is nearly always a sign of infection. Greenish or rusty phlegm or phlegm with rusty spots can also be a sign of pneumonia. Coughing up brown phlegm is also a common symptom of excessive smoking.
â¤ Coughing up Light-Yellow Phlegm. Light-yellow phlegm is a sign of a well-functioning immune system. It signifies that your immune system is fighting against a viral or other infection within your body or is at the beginning or end of a sinus infection.