During an asthma attack, also called an asthma exacerbation, your airways become swollen and inflamed. The muscles around the airways contract and the airways also produce extra mucus, causing your breathing (bronchial) tubes to narrow.
During an attack, you may cough, wheeze and have trouble breathing. An asthma attack may be minor, with symptoms that get better with prompt home treatment, or it may be more serious. A severe asthma attack that doesn't improve with home treatment can become a life-threatening emergency.
The key to stopping an asthma attack is recognizing and treating an asthma flare-up early. Follow the treatment plan you worked out with your doctor ahead of time. Your treatment plan should include what to do when your asthma starts getting worse, and how to deal with an asthma attack in progress.
Asthma attack signs and symptoms include:
- Severe shortness of breath, chest tightness or pain, and coughing or wheezing
- Low peak expiratory flow (PEF) readings, if you use a peak flow meter
- Symptoms that fail to respond to use of a quick-acting (rescue) inhaler
Signs and symptoms of an asthma attack vary from person to person. Work with your doctor to identify your particular signs and symptoms of worsening asthma — and what to do when they occur.
If your asthma symptoms keep getting worse even after you take medication as your doctor directed, you may need emergency room care. Your doctor can help you learn to recognize an asthma emergency so that you'll know when to get help.
An overly sensitive immune system makes your airways (bronchial tubes) become inflamed and swollen when you're exposed to certain triggers. Asthma triggers vary from person to person. Common asthma attack triggers include:
- Pollen, pets, mold and dust mites
- Upper respiratory infections
- Tobacco smoke
- Inhaling cold, dry air
- Gastroesophageal reflux disease (GERD)
- Stress
For many people, asthma symptoms get worse with a respiratory infection such as a cold. Some people have asthma flare-ups caused by something in their work environment. Sometimes, asthma attacks occur with no apparent cause.
Anyone who has asthma is at risk of an asthma attack. You may be at increased risk of a serious asthma attack if:
- You've had a severe asthma attack in the past
- You've previously been admitted to the hospital or had to go to the emergency room for asthma
- You've previously required intubation for an asthma attack
- You use more than two quick-acting (rescue) inhalers a month
- Your asthma attacks tend to sneak up on you before you notice symptoms have worsened
- You have other chronic health conditions, such as sinusitis or nasal polyps, or cardiovascular or chronic lung disease
Asthma attacks can be serious.
- Asthma attacks can interrupt everyday activities such as sleep, school, work and exercise, causing a significant impact on your quality of life — and can disrupt the lives of those around you.
- Serious asthma attacks mean you're likely to need trips to the emergency room, which can be stressful and costly.
- A very severe asthma attack can lead to respiratory arrest and death.