Misuse of asthma medication can be classified in two ways- improper dosage and administration of the medication, or use by an individual other than the whom the medication has been prescribed to. Asthma attack. If you have asthma, the inside walls of the airways in your lungs can become inflamed and swollen. In addition, membranes in your airway linings may secrete excess mucus. What to look out for. Coughing is part of your body’s natural immune defence system. It is better to cough up phlegm than to have it stay lower in your lungs where it can cause serious infections such as pneumonia. What is asthma? Learn the definition of asthma and get the facts on asthma triggers, symptoms, diagnosis, treatment, an asthma action plan, causes, and more. Learn about what happens during an asthma attack, what asthma medications to use for treatment, and different asthma inhalers. Different Types of Asthma Medications. Many first-line controller and rescue medications are administered through asthma inhalers. Some of these inhalers are called metered-dose inhalers in which the inhaler itself propels the medication into the lungs. It is estimated that by 2025, a whopping 100 million people across the world will suffer from asthma. Unfortunately, asthma is a condition for which there. Asthma is the result of chronic inflammation of the conducting zone of the airways (most especially the bronchi and bronchioles), which subsequently results in increased contractability of the surrounding smooth muscles. Many people with asthma wonder if inhalers are still safe to use after their expiry date. Learn about medication expiry dates and possible side effects. Asthma is caused by inflammation in the airways. When an asthma attack occurs, the muscles surrounding the airways become tight and the lining of the air passages swell. This reduces the amount of air that can pass through the airways. Asthma is a common chronic (long-term) lung disease in which the lungs' bronchial tubes, or airways, become inflamed. This inflammation causes the airways to become sensitive to environmental.