Call your doctor if your cough (or your child's cough) doesn't go away after a few weeks or if it also involves any one of these: Coughing up thick, greenish-yellow phlegm.
Yellow phlegm is a sign that your body is fighting off a mild infection. "White blood cells are responsible for fighting infections, and as they get picked up in the mucus, they can cause it to have a yellowish hue," says Dr. Kreel.
After 2 or 3 days, mucus may change to a white, yellow, or green color. This is normal and does not mean you need an antibiotic. Some symptoms, especially runny or stuffy nose and cough, can last for up to 10 to 14 days. Those symptoms should improve over time.
Days 3 to 5: Cough and More Nasal Congestion
Nasal symptoms continue to develop, peaking during the third and fourth days. You may notice that mucus from your runny nose has become thicker, with a yellow or green tinge.
Common conditions that cause phlegm to turn yellow include pneumonia, bronchitis, and sinusitis. A person should contact their doctor if they have been producing yellow phlegm for more than a few days.
Small amounts of white mucus may be coughed up if the bronchitis is viral. If the color of the mucus changes to green or yellow, it may be a sign that a bacterial infection has also set in. The cough is usually the last symptom to clear up and may last for weeks.
Signs and symptoms of a chest infection
The main symptoms of a chest infection can include: a persistent cough. coughing up yellow or green phlegm (thick mucus), or coughing up blood.
If you cough up phlegm that's yellow, green, brown, black, white or red — or if you cough up mucus for two weeks or longer, schedule a visit with your healthcare provider. They can find out what's causing you to cough up phlegm and treat any underlying conditions.
Changes in mucus color, from clear to white to yellow to green, are part of the normal course of an illness. It's a sign that your immune system is fighting to get better. Pink, red, orange, or brown snot, on the other hand, is typically not from an illness.
In general, your phlegm will last just about as long as your cough does. For bacterial infections, you can expect to see your cough and phlegm dissipate in 10 to 14 days, even without antibiotic medications. Viral infections can last a bit longer and may keep producing phlegm for up to three weeks.
Green or yellow mucus may come from the nose which shows that the immune system is fighting the infection. It does not necessarily mean that your cold is getting worse or that you have a bacterial infection and need antibiotics.
We're often told – even by doctors – that green or yellow secretions indicate you're infectious. But this isn't true. It's unclear how this myth arose, but it's likely a misunderstanding of the appearance and colour of pus.
ANSWER: Greenish-gray or yellowish nasal mucus — your health care provider might call it purulent nasal discharge — isn't a sure sign of a bacterial infection, although that is a common myth — even in the medical world.
One of the first signs of a cold is green or yellow mucus. It's no reason for concern, and in fact, it means your body is working extra hard to fight off infection. White blood cells rush to battle infection, and when they've done their job, they get flushed out of the body along with the virus.
The main symptom of bronchitis is a hacking cough. It is likely that your cough will bring up thick yellow-grey mucus (phlegm), although this does not always happen. Other symptoms of bronchitis are similar to those of other infections, such as the common cold or sinusitis, and may include: sore throat.
Common symptoms of pneumonia include: a cough – which may be dry, or produce thick yellow, green, brown or blood-stained mucus (phlegm)
Green and cloudy: viral or bacterial infection
A lot of the symptoms of viral infections – fever, cough, headache, loss of smell – overlap for COVID-19 and other viral infections like the flu, respiratory syncytial virus and the common cold. That's why COVID-19 testing and seeing a doctor is so important.
Also, sputum production in viral airway infections may be clear, white, or even tinged with blood [15]. It has been shown that a yellowish or greenish sputum colour is often related to the bacterial load of patients suffering from COPD exacerbation [16], [17] or patients hospitalized due to respiratory conditions [18].
Does coughing up mucus mean you're getting better? In most cases, coughing up mucus means your body is working to fight off an infection, and it is in the healing stages. Drink plenty of fluids to help thin the mucus.
The most common symptoms of bronchitis are: Runny, stuffy nose. Low-grade fever. Chest congestion.
With pneumonia, you may cough up greenish or yellow phlegm. You also may run a fever and have the chills. Pneumonia can make it hard to breathe. You may feel like you've run up a flight of stairs when you were just sitting still.
Often viral cases of pneumonia begin as congestion and cough with or without fever in the first few days. When a doctor listens to the lungs and finds breathing sounds are not clear on either side of the chest, a viral cause over bacterial is even more highly suspected.
If you are coughing green or yellow mucus, let your GP or health care provider know. If you are coughing up blood (or blood stained mucus), call your GP, the COVID-19 Care at Home Support Line or Healthdirect for further advice.
You can try taking an over-the-counter cough suppressant (such as dextromethorphan) and/or an exportant to help thin the mucous (such as guaifenesin). Be sure to follow the directions on the package. If you have more severe or long-lasting symptoms, you should see a doctor.
Your doctor may prescribe antibiotics if the symptoms are severe and include high fever along with nasal drainage and a productive cough. Antibiotics may also be necessary if you feel better after a few days and then your symptoms return or if the infection lasts more than a week.