An asthma attack can be frightening, but knowing what to do can help you stay calm and get treatment quickly.
During an asthma attack, the muscles surrounding your airways tighten, the lining of the airways becomes more inflamed, and extra mucus may be produced. Together, these changes make it difficult for air to move in and out of your lungs.
Most asthma attacks improve with prompt treatment, but severe attacks can become life-threatening if not treated quickly. Understanding the warning signs and following your asthma action plan can reduce the risk of serious complications.
What Happens During an Asthma Attack?
During an asthma attack, three things occur: the muscles around the airways tighten (bronchospasm), the airway lining becomes swollen and inflamed, and thick mucus may partially block the airways. These changes narrow the breathing tubes, making it harder to breathe.
Common triggers include respiratory infections, seasonal allergies, smoke or air pollution, exercise, cold air, pet dander, and strong odors or chemical fumes.
Early Warning Signs
Recognizing symptoms early allows treatment to begin before an attack becomes severe. Early signs may include mild wheezing, frequent coughing, chest tightness, shortness of breath, difficulty exercising, needing your rescue inhaler more often, and waking at night because of asthma symptoms. Some people notice symptoms gradually over several hours, while others worsen much more quickly.
Signs of a Severe Asthma Attack
A severe asthma attack is a medical emergency. Symptoms may include:
- Severe shortness of breath and rapid breathing
- Difficulty speaking in full sentences
- Persistent wheezing—or very little airflow despite severe effort
- Retractions (the skin pulling in between the ribs or at the neck)
- Blue or gray lips or fingernails
- Extreme fatigue or confusion
These symptoms require immediate medical attention.
Step 1: Stop and Stay Calm
If possible, stop exercising or other physical activity, sit upright rather than lying flat, try to remain calm, and loosen tight clothing around your neck or chest. Anxiety can make breathing feel even more difficult, but staying as relaxed as possible may help you breathe more effectively.
Step 2: Use Your Rescue Inhaler
Use your rescue inhaler exactly as directed in your asthma action plan or by your healthcare provider. For many people, this means taking the prescribed number of puffs of albuterol using the correct inhaler technique. If you use a spacer, attach it before taking your medication.
Do not exceed the prescribed dose unless specifically instructed by your healthcare provider or emergency medical personnel.
Step 3: Monitor Your Symptoms
After using your rescue inhaler, pay close attention to how you're feeling. Is breathing becoming easier? Is wheezing improving? Can you speak more comfortably? Are you still struggling to breathe? Some improvement should occur within several minutes after using albuterol.
Step 4: Follow Your Asthma Action Plan
Many people with asthma receive a personalized asthma action plan from their healthcare provider. An action plan may include which medications to take, when to repeat rescue medication, when to start oral steroids if prescribed, when to call your healthcare provider, and when to seek emergency care. Keep a copy at home, work, school, or anywhere you spend significant time.
Step 5: Remove Yourself From Triggers
If possible, leave the environment that may have triggered your symptoms — cigarette smoke, wildfire smoke, heavy pollen exposure, strong perfumes, chemical fumes, or cold outdoor air. Reducing continued exposure may help prevent symptoms from worsening.
Step 6: Seek Medical Care If Symptoms Continue
If your breathing does not improve after using your rescue inhaler—or if symptoms worsen—you should seek urgent medical evaluation. Never delay seeking help because you hope symptoms will eventually improve. Prompt treatment can prevent a severe asthma attack from becoming life-threatening.
Should You Use a Nebulizer Instead?
Some people have both a rescue inhaler and a nebulizer. Both deliver short-acting bronchodilator medication, but one is not automatically better than the other. When used correctly with a spacer, a metered-dose inhaler can be just as effective as a nebulizer for many asthma attacks. Your healthcare provider will recommend the device that is most appropriate for your situation.
Can You Prevent Future Asthma Attacks?
Many asthma attacks can be prevented by taking controller medications as prescribed, using proper inhaler technique, avoiding known triggers, treating seasonal allergies, staying up to date with recommended vaccinations, following your asthma action plan, and attending regular follow-up visits. Good asthma control reduces both the frequency and severity of attacks.
Frequently Asked Questions
Should I lie down during an asthma attack?
No. Most people breathe more comfortably while sitting upright.
Should I go outside for fresh air?
Not always. If smoke, pollen, cold air, or pollution triggered your symptoms, staying indoors may be safer.
Can I drive myself to the emergency department?
If you're having severe breathing difficulty, it's safer to have someone else drive you or call 911 rather than driving yourself.
How long does an asthma attack last?
Some attacks improve within minutes after treatment, while others can last for hours and require additional medical care.
Can asthma attacks happen during sleep?
Yes. Nighttime asthma symptoms are common and may indicate that asthma is not well controlled.
When Should You Contact Your Healthcare Provider?
Schedule an appointment if you're having asthma attacks more often, you're using your rescue inhaler more frequently than usual, your symptoms interfere with work, school, sleep, or exercise, or you are unsure whether your asthma medications are working. Frequent asthma attacks usually mean your treatment plan should be reviewed.
Seek Immediate Medical Care If
Call 911 or seek emergency medical care immediately if your rescue inhaler does not relieve severe shortness of breath, you cannot speak in full sentences, your lips, face, or fingernails become blue or gray, your breathing rapidly worsens, you become confused, extremely sleepy, or difficult to awaken, or you feel faint or lose consciousness. These symptoms may indicate a life-threatening asthma attack and require emergency treatment.
The Bottom Line
An asthma attack occurs when your airways become narrowed from muscle tightening, inflammation, and mucus production. Recognizing symptoms early, using your rescue inhaler correctly, and following your asthma action plan can often prevent an attack from becoming more severe.
If your symptoms do not improve quickly or you develop signs of severe breathing difficulty, seek emergency medical care immediately. Prompt treatment can be lifesaving.