Asthma Explained: Long-Term Control and Management

What happens in asthma

In asthma, the airways are more sensitive than usual and react to things that would not bother most people. When triggered, three things happen: the airway lining becomes inflamed and swollen, the muscles around the airways tighten, and sticky mucus builds up. Together, these narrow the airways and make it harder to move air, especially breathing out. This is why people wheeze and feel tight-chested. Between flare-ups, the airways may feel normal, but the underlying tendency to inflammation remains, which is why treatment continues even when you feel well. Understanding this helps explain why asthma has two sides: calming the ongoing inflammation, and relieving sudden narrowing when it happens.

Knowing your triggers

A trigger is anything that sets off asthma symptoms, and they differ from person to person. Common ones include colds and chest infections, house dust mites, pollen, animal fur, cigarette smoke, cold air, exercise, air pollution and stress. Some people react to mould or to certain medicines. Learning your own pattern is a powerful tool, because avoiding or reducing triggers means fewer symptoms and less need for medicine. Keeping a simple diary of when symptoms occur can reveal links you might otherwise miss. You cannot avoid everything, and you should not stop exercising, but sensible steps, such as not smoking and treating hay fever, can make a real difference to day-to-day control.

Preventer and reliever inhalers

Most asthma treatment is delivered by inhalers, which send medicine straight to the airways. There are two main types. Preventer inhalers, usually taken every day, calm the underlying inflammation so the airways are less twitchy; they work over time rather than instantly, which is why they must be used regularly even when you feel fine. Reliever inhalers act quickly to open narrowed airways during symptoms. Needing your reliever often, more than a couple of times a week, is an important warning sign that your asthma is not well controlled and you should see your GP or asthma nurse. Some people use combination inhalers; your clinician will explain your particular regime.

Inhaler technique and reviews

An inhaler only works if the medicine reaches the lungs, and poor technique is one of the commonest reasons asthma stays uncontrolled. Many people, without realising, breathe in at the wrong moment or too fast, so much of the dose never gets past the mouth. A spacer, a plastic chamber that attaches to the inhaler, can make this much easier and is especially useful for children. Ask your pharmacist, GP or asthma nurse to watch you use your inhaler and correct any mistakes. Everyone with asthma should also have a regular review, at least once a year, to check control, technique and their action plan, and after any attack.

Your personal asthma action plan

A written personal asthma action plan is one of the most effective tools for staying well. Drawn up with your nurse or doctor, it sets out your usual treatment, how to recognise when your asthma is getting worse, what to do about it, and exactly when to seek urgent help. People who use an action plan have fewer attacks and hospital visits. The plan often uses your symptoms, and sometimes peak flow readings, to guide decisions. Keep it somewhere handy and make sure family members know about it. Reviewing it regularly, and after any flare-up, keeps it useful. Good long-term control is a partnership between you and your healthcare team.