When to worry about coughing up phlegm with pneumonia

Pneumonia inflames the air sacs and airways, so mucus may become more noticeable and coughing may be tiring. Yellow or green phlegm can occur, but colour alone cannot show how serious the illness is. A sudden increase in breathlessness, chest pain when breathing, persistent fever, unusual sleepiness, or inability to keep fluids down is more concerning.

Take prescribed treatment according to the instructions and rest while monitoring your breathing, temperature, alertness, and fluid intake. Sit upright if coughing feels easier that way. Avoid smoking and do not use someone else’s antibiotics. If symptoms are not improving as expected or are worsening, contact the treating clinician.

Seek same-day medical advice for increasing breathlessness, chest pain, persistent fever, dehydration, or phlegm that is blood-stained. Call emergency services for severe breathing difficulty, blue lips, new confusion, collapse, or inability to stay awake.

Ask how quickly your symptoms should improve, which changes mean the treatment needs review, and whether you need follow-up after recovery. Confirm how to manage missed doses or vomiting after medicine.