Asthma What is Asthma? When you have asthma, your airways narrow and swell. They produce extra mucus, and breathing becomes difficult. The most common asthma signs and symptoms are coughing, wheezing and shortness of breath. For some people, asthma symptoms are a minor nuisance. For others, they're a major problem that interferes with daily activities. If you have severe asthma, you may be at risk of a life-threatening asthma attack. Asthma can't be cured, but its symptoms can be controlled. Treatments include taking steps to avoid your particular asthma triggers, using long-term control medications to prevent flare-ups and using a quick-relief inhaler to control symptoms once they start. Because asthma changes over time, you'll work with your doctor to track your signs and symptoms and adjust treatment as needed. Symptoms Asthma symptoms range from minor to severe and vary from person to person. You may have mild symptoms and asthma attacks may be infrequent. Between asthma flare-ups you may feel normal and have no trouble breathing. You may have symptoms primarily at night, during exercise or when you're exposed to specific triggers. Or you may have asthma symptoms all the time. Asthma signs and symptoms include:
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