asthma self care basics
Informed by recognized medical guidance
Overview
Asthma is a long-term condition that affects the small breathing tubes in your lungs. These tubes become swollen and extra sensitive. When you meet something that irritates them — such as smoke, pollen, or a cold — the tubes can narrow, making it hard to breathe.
Key facts
- Asthma can be controlled, so most people with it lead full and active lives.
- There are two main types of inhaler: a preventer used every day and a reliever used when symptoms happen.
- A written asthma action plan tells you exactly what to do when symptoms change.
- Not everyone wheezes; asthma can also cause cough, chest tightness, and breathlessness.
Yes. Asthma is one of the most common long-term health conditions in the world, affecting millions of people of all ages.
Asthma can start at any age, but it often begins in childhood. In childhood, it is more common in boys; after puberty, it is slightly more common in women.
Symptoms
- Severe shortness of breath, such as being unable to catch your breath
- Being unable to finish a sentence without stopping to breathe
- Lips, skin, or nails turning blue or grey
- Feeling confused, drowsy, or very agitated
- Not getting better after using your reliever inhaler as your plan says
- ⚠Symptoms not improving after using your reliever inhaler
- ⚠Needing your reliever much more often than usual
- ⚠Waking at night most nights with wheeze, cough, or breathlessness
- ⚠A large drop in your peak flow reading if you use a peak flow meter
Common symptoms
- Wheezing — a whistling sound when you breathe out
- A feeling of tightness in the chest
- Shortness of breath or feeling out of breath easily
- A dry cough, often worse at night, early morning, or during exercise
Symptoms in children
- A cough that keeps coming back, especially at night or while playing
- Wheezing or noisy breathing, often worse with colds
- Being less active or avoiding exercise because of breathlessness
- Fast breathing or the skin between the ribs pulling in with each breath
Symptoms in older adults
- Shortness of breath that limits everyday activities
- Wheezing or a cough that does not go away
- Feeling unusually tired after light activity
- Chest tightness that may be mistaken for ageing or another heart or lung problem
Causes
Main causes
- The exact cause is not fully understood. It seems to involve a mix of genes and early-life environment.
- In asthma, the airway lining is chronically inflamed, making it extra sensitive to triggers.
- When a trigger is met, the muscles around the airways tighten and the lining may swell and produce extra mucus, causing symptoms.
Risk factors
- A family history of asthma, eczema, or hay fever
- Personal allergies, such as to pollen, dust mites, pets, or mould
- Exposure to tobacco smoke during pregnancy or childhood
- Viral chest infections in early life
- Workplace dust, fumes, or chemicals
- Air pollution or poor indoor air quality
- Being overweight
When to see a doctor
See a doctor urgently if:
- Your symptoms are severe or worsening quickly — if they are very severe, call your local emergency number.
- You need your reliever inhaler much more often than usual.
- You do not have a written asthma action plan and you are not sure what to do during a flare-up.
- Your symptoms are not improving with your usual medicines.
Book a routine appointment if:
- You have repeated coughing, wheezing, or breathlessness and have not been diagnosed.
- You have asthma but have not had a check-up in a while.
- Your symptoms disturb your sleep or limit your daily activities.
- You need a review of your inhaler technique or your asthma action plan.
Diagnosis
Asthma is usually diagnosed by a doctor or specialist nurse. They will ask about your symptoms and triggers, listen to your chest, and carry out breathing tests. There is no single test that proves asthma, so the diagnosis is based on the whole picture.
Tests that may be done
- Spirometry — you blow hard into a machine that measures how much air you can breathe out and how fast.
- Peak flow testing — you blow into a small handheld tube that shows how fast air leaves your lungs.
- FeNO test — you breathe into a device that measures airway inflammation.
- Reversibility testing — your breathing tests are repeated after using a reliever inhaler to see if your airways open up.
What to expect at your appointment
These tests are simple and painless. You may be asked not to use your inhaler for a short time before the test, and your provider will explain exactly what to do. Sometimes doctors ask you to monitor symptoms and peak flow at home for a few weeks before making a firm diagnosis.
Treatment
Asthma treatment is based on controlling the inflammation in the airways and relieving symptoms quickly when they happen. Most people use two kinds of inhalers, and the goal is to keep symptoms away so you can do all the things you enjoy.
Self-care at home
- Use your preventer inhaler every day if prescribed, even when you feel well.
- Check your inhaler technique — ask your nurse or pharmacist to watch you use it.
- Follow your written asthma action plan and update it when things change.
- Avoid your known triggers where possible, such as smoke, cold air, dust, pollen, or animal fur.
- Monitor your symptoms and, if you have one, your peak flow readings.
- Have a plan for exercise, including warming up and carrying your reliever with you.
Medical treatments
Most asthma medicines are inhaled because they go straight to the lungs. A preventer inhaler is used daily to reduce inflammation, and a reliever inhaler works quickly to relax the airways when symptoms occur. In addition, healthcare providers may prescribe combination inhalers, tablets, or, for severe asthma, injection treatments called biologics. Your doctor will work with you to choose what is right for your asthma and adjust it over time.
When is surgery considered?
Surgery is not a normal part of asthma care. Very rarely, for severe asthma that has not improved with the usual medicines, a specialist may discuss procedures to reduce the amount of airway muscle or other non-drug treatments. These are considered only after thorough specialist assessment.
Living with this condition
With the right care, asthma should not stop you from living well. Daily routines that work for you — taking your preventer, following your action plan, and keeping your reliever close — can help you feel in control rather than frightened of symptoms.
Lifestyle tips
- Quit smoking and avoid smoky places.
- Keep your home well ventilated and reduce dust, mould, and damp where possible.
- Check air pollution or pollen levels on bad days and plan outdoor time accordingly.
- Wash bedding regularly and use allergen-proof covers if dust mites are a trigger.
- Find ways to manage stress, as stress can make asthma symptoms worse.
Diet and exercise
No special diet fixes asthma, but eating a balanced diet and staying active are good for your heart, lungs, and overall wellbeing. Exercise can be a trigger for some people, but with a warm-up, an updated action plan, and the right support, most people can exercise safely. If cold air bothers you, try breathing through a scarf or neck warmer.
Mental health and emotional wellbeing
Living with a long-term condition can bring stress, frustration, or low mood — and stress can also trigger asthma. It is okay to ask for help. Talk honestly with your healthcare provider, and consider support from family, friends, or a counsellor. If you ever have thoughts of harming yourself or feel in crisis, call your local emergency number or a crisis helpline right away.
Prevention
Asthma itself cannot always be prevented, especially when the tendency runs in families. However, many flare-ups can be prevented by avoiding triggers, taking preventer medicine as prescribed, and following a written action plan. Not smoking and reducing exposure to tobacco smoke are especially important.
Vaccines
Viral infections can trigger asthma attacks. Keeping your vaccinations up to date, including the flu vaccine if offered, helps protect you. Ask your healthcare provider which vaccines are recommended for you.
Screening programmes
There is no routine screening test for asthma in people who have no symptoms. If you have a recurring cough, wheeze, or breathlessness, book an appointment; breathing tests can help give you answers.
Complications
If left untreated
- Asthma attacks that lead to emergency department visits or hospital stays
- Persistent symptoms that disturb sleep and make daily activities difficult
- Loss of lung function over time if airways stay inflamed
- Serious breathing failure in rare, severe cases
Long-term outlook
The outlook for asthma is good. With a proper diagnosis, modern treatment, and a plan you can follow, most people live full and active lives. Many children with asthma find symptoms become much milder as they get older. The key is keeping inflammation controlled and seeking help early when symptoms change.
Find support
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
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Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 31, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.