Book excerpt: Asthma is a long-term condition that reduces the amount of air flowing in and out of the lungs. Whether your symptoms are mild, difficult-to-control or severe, it is important to be in control of your asthma. The information in this booklet is designed to help you and your family better understand the condition, what triggers it and how to treat it. It includes clear instructions for good inhaler technique and emphasizes the importance of having an Asthma Action Plan in place so that you know: • when and how often to take your treatment • how to tell if your symptoms are getting worse • what to do when your symptoms get worse. With simple clear illustrations, explanation of medical terms and space to write down the questions you want to ask your doctor or nurse, this resource will help you take control of your asthma. Contents: • What is asthma? • What causes asthma? • What are the symptoms of asthma? • What are the tests for asthma? • What medications are used to treat asthma? • Inhalers and spacers • Your Asthma Action Plan • How do I prevent an asthma attack? • How do I manage an asthma attack? • Difficult-to-control asthma • Severe asthma • Treatment of severe asthma • Exercise-induced asthma • Occupational asthma • Asthma in older people • Asthma in pregnancy • Asthma in children