questions to ask before cough

Overview

A cough is a sudden, forceful burst of air from your lungs. It helps clear your airways of things like mucus, dust, or smoke. Coughs can be short-term (acute) lasting less than 3 weeks, or long-term (chronic) lasting more than 8 weeks.

Yes, coughs are very common. Most people have one or two each year, usually with a cold or flu.

Anyone can get a cough, but children, older adults, and people with weak immune systems or lung conditions may get them more often or have more severe symptoms.

Symptoms

Common symptoms

• Dry or tickly throat
• Coughing up clear, white, or yellow mucus
• Cough that is worse at night or when lying down
• Mild sore throat or hoarseness
• Feeling tired from coughing

Symptoms in children

• Cough with a runny nose, fever, or ear pain
• Barking cough (croup) – sounds like a seal
• Cough that gets worse during play or excitement
• Trouble eating or drinking due to coughing

Symptoms in older adults

• Cough that is harder to clear because of weaker cough muscles
• Shortness of breath or chest tightness
• Cough that causes dizziness or falls
• Cough with little energy or confusion

Causes

Main causes

• Viral infections – common cold, flu, COVID-19
• Bacterial infections – whooping cough, pneumonia, bronchitis
• Allergies – pollen, dust, pet dander
• Smoking or exposure to smoke
• Asthma
• Acid reflux (heartburn)
• Postnasal drip – mucus from the nose dripping down the throat

Risk factors

• Smoking or living with smokers
• Having a lung condition like asthma or COPD
• Weak immune system (due to age, illness, or medicines)
• Working in dusty or chemical-filled environments
• Being around sick people frequently

When to see a doctor

See a doctor urgently if:

• Cough with trouble breathing, chest pain, or coughing up blood
• Cough that started after choking on food or an object
• Cough with a high fever that won't go down
• Cough with confusion or if you feel very unwell

Book a routine appointment if:

• Cough that lasts more than 3 weeks
• Cough that keeps coming back
• Cough that interferes with sleep, work, or daily life
• Cough with unexplained weight loss or night sweats

Diagnosis

Your doctor will ask about your cough, how long you've had it, and any other symptoms. They'll listen to your lungs with a stethoscope and may check your oxygen level.

Tests that may be done

• Chest X-ray – to look at your lungs
• Sputum test – testing the mucus you cough up
• Blood test – to check for infection or inflammation
• Lung function test – to see how well your lungs work (often for asthma or COPD)
• Allergy test – if allergies might be the cause

What to expect at your appointment

The doctor will ask you to cough into a tissue or a cup to collect mucus if needed. They may ask you to take a deep breath and hold it. Most tests are quick and painless. You'll get results usually within a few days to a week.

Treatment

Treatment for a cough depends on the cause. Viral coughs usually get better on their own. Bacterial infections may need antibiotics. Allergies and asthma are treated with inhalers or antihistamines. Acid reflux is managed with diet changes and medicines.

Self-care at home

• Stay hydrated – drink plenty of water
• Use honey (for adults only – never for babies under 1 year old) to soothe a sore throat
• Sip warm tea with lemon
• Get plenty of rest
• Use a humidifier or breathe in steam from a bowl of hot water
• Avoid smoke and strong smells

Medical treatments

If a cough is caused by asthma, your doctor may prescribe an inhaler to open your airways. For bacterial pneumonia or whooping cough, antibiotics may be recommended. For chronic cough from acid reflux, medicines that reduce stomach acid can help. Your doctor will choose the right treatment based on your specific cause.

When is surgery considered?

Surgery is rarely needed for a cough. Only in very rare cases, if a cough is caused by a lung tumor or structural problem, surgery may be considered.

Living with this condition

If you have a long-term cough, it can be tiring. Try to rest when you can and keep your home clean and dust-free. Keep a cough diary to track when it gets worse – that can help you and your doctor find triggers.

Lifestyle tips

• Quit smoking – or avoid places where people smoke
• Avoid known allergens like pollen or dust
• Cover your mouth when you cough to avoid spreading germs
• Wash hands often
• Stay up to date on vaccinations

Diet and exercise

Eat a balanced diet with fruits and vegetables to support your immune system. Regular gentle exercise, like walking, can strengthen your lungs. If exercise makes your cough worse, talk to your doctor.

Mental health and emotional wellbeing

A chronic cough can be frustrating and embarrassing. It may make you feel self-conscious or anxious. It's okay to feel that way. Talk to your doctor if the cough is affecting your mood or sleep.

Prevention

Many coughs can't be completely prevented, but you can lower your risk by avoiding infections, not smoking, and managing any underlying conditions like asthma or acid reflux.

Vaccines

Vaccines like the flu shot and whooping cough vaccine can prevent some types of cough. Ask your doctor if you are up to date with these vaccines.

Screening programmes

Regular check-ups are a good idea if you have a chronic cough or a lung condition. There is no routine screening for cough in healthy people.

Complications

If left untreated

• A simple cough from a cold can turn into a more serious chest infection like pneumonia.
• Asthma cough that is not treated can lead to severe asthma attacks.
• Chronic cough can cause rib fractures, dizziness, or urinary incontinence (especially in women).
• Whooping cough can last for months and cause complications, especially in babies.

Long-term outlook

The outlook for a cough is generally excellent. Most short-term coughs go away in a few weeks. Chronic coughs also often improve when the underlying cause is treated. Working with your doctor, you can find ways to manage your cough and feel better.

Find support

Local organisations

• Asthma and Lung UK ↗ · United Kingdom
• American Lung Association ↗ · United States

Helplines

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