Dr Munisamy advised: "If your cough lasts three weeks or more ... or pain when you take in a deep breath Coughing up blood or a pink/red phlegm. Dr Munisamy added: “If you are worried about ...
“Most of these types of coughs will go away within three weeks, but if your cough persists and you are bringing up green phlegm you may need to see a health professional and may need antibiotics ...