In this article 7 sections
Pneumonia is an infection that affects one or both lungs. The tiny air sacs inside the lungs can become inflamed and fill with fluid or pus, making it harder to breathe and get enough oxygen into the blood.
Bacteria and viruses are common causes, while fungi cause some cases. The illness can range from mild to serious. Some people recover at home with prescribed treatment, while others need hospital care and closer monitoring.
What symptoms should you watch for?
Pneumonia can cause a cough, fever, chills, breathlessness and chest pain that becomes worse when breathing deeply or coughing. You may bring up mucus, feel unusually tired or lose your appetite. Symptoms can develop suddenly or build over several days.
Not everyone has a high fever. Older adults and people with weakened immune systems may instead become unusually weak or confused. A normal temperature does not rule out a serious infection.
Babies may also show different signs, including rapid breathing, grunting or the skin between the ribs pulling inward with each breath. These breathing changes need urgent medical assessment.
Who needs particular care?
Anyone can develop pneumonia, but babies, young children and older adults are more vulnerable. Diabetes, chronic heart or lung disease, and conditions or medicines that weaken the immune system can also increase risk.
If someone in these groups develops a cough with fever, breathlessness or a noticeable decline in their usual health, seek medical advice promptly. Waiting for every typical symptom to appear can delay care.
How does a doctor diagnose pneumonia?
Your doctor will ask when the illness started, check your temperature and listen to your chest. They may measure your oxygen level using a small device placed on your finger. Tell them about existing health conditions, medicines and any recent hospital stay.
A chest X-ray may help confirm pneumonia. Depending on how unwell you are, blood tests or a sample of mucus may also be needed. These can help assess the infection and sometimes identify the germ responsible. Not everyone needs all these tests.
How is pneumonia treated?
Treatment depends on the likely cause, the severity of the illness and your overall health. Bacterial pneumonia is usually treated with antibiotics. Antiviral medicines may help with certain viral infections, while fungal pneumonia needs a different type of treatment.
Take medicines exactly as prescribed and complete the prescribed antibiotic course unless your doctor changes the plan. Do not use leftover antibiotics or someone else’s prescription. Ask your doctor before adding cough or cold medicines to your treatment.
If you are taking antibiotics at home and have not started feeling better after two to three days, contact your doctor. Seek help sooner if your condition worsens; you do not need to wait for that period to pass.
Hospital treatment may be needed when pneumonia is severe or oxygen levels are low. This can include medicines and fluids through a vein, oxygen and, in more serious cases, additional support with breathing.
Recovery can take longer than the fever
Improvement is often gradual. Fever may settle before your energy and breathing return to normal, and a cough or tiredness can continue for several weeks. Recovery may take longer after a severe illness or hospital admission.
Allow time for sleep and rest, eat regularly and stay hydrated. If you already have a prescribed fluid limit for another condition, ask your doctor how to follow it during recovery. Avoid smoking and exposure to other people’s smoke.
As you improve, gentle movement can help rebuild strength. Increase activity gradually rather than immediately returning to strenuous exercise or a full workload. Ask your doctor what is suitable for your stage of recovery.
Keep any follow-up appointment, particularly if symptoms are not settling. Your doctor may recommend another chest X-ray or further assessment when recovery is slower than expected. A lingering symptom should be reviewed rather than automatically treated with another antibiotic course.
Reducing the risk of another infection
Ask your doctor which vaccinations are appropriate for your age and medical history. Vaccines against pneumococcal disease, flu and other infections can prevent some causes of pneumonia, although they do not prevent every case.
Regular handwashing, covering coughs and avoiding tobacco smoke also help. While unwell, reduce close contact with others, especially babies, older relatives and people with weakened immunity. Continue managing existing conditions and attend their scheduled reviews.
When to get emergency help
Call 112 in India if someone is struggling to breathe, cannot speak because of breathlessness, develops blue or grey lips, or becomes suddenly confused. A baby who is difficult to wake or unusually floppy also needs emergency help.
Do not drive yourself to hospital when severely unwell. Take your current medicines or a medication list, if readily available, without delaying care.