Anglų skaidrės. Asthma. Ema Krivickaitė LSMU MF 2k. 22gr. Vocabulary. Hay fever –. What is asthma? Asthma is a chronic lung disease that inflames and narrows the airways. The airways are tubes that carry air into and out of your lungs. What causes asthma? Asthma is caused. Tobacco smoke has. Asthma symptoms. Severe wheezing when. How to treat asthma? Medications used to. Good Control. Chronic and troublesome. What happens during an asthma attack? The muscles around your airways tighten up.