Everyone with asthma needs a quick-relief or "rescue" medicine to stop asthma symptoms before they get worse. Short-acting inhaled beta-agonists are the preferred quick-relief medicine. These medicines are bronchodilators. They act quickly to relax tightened muscles around your airways so that the airways can open up and allow more air to flow through. You should take your quick-relief medicine when you first begin to feel asthma symptoms, such as coughing, wheezing, chest tightness, or shortness of breath. You should carry your quick-relief inhaler with you at all times in case of an asthma attack. Your doctor may recommend that you take your quick-relief medicines at other times as wellâ€”for example, before exercise. Long-term control medicines The most effective, long-term control medicine for asthma is an inhaled corticosteroid (kor-ti-ko-STE-roid) because this medicine reduces the airway swelling that makes asthma attacks more likely. Inhaled corticosteroids (or steroids for short) are the preferred medicine for controlling mild, moderate, and severe persistent asthma. They are generally safe when taken as directed by your doctor. In some cases, steroid tablets or liquid are used for short periods of time to bring asthma under control. The tablet or liquid form may also be used to control severe asthma. Other long-term control medicines include: * Inhaled long-acting beta-agonists. These medicines are bronchodilators, or muscle relaxers, not anti-inflammatory drugs. They are used to help control moderate and severe asthma and to prevent nighttime symptoms. Long-acting beta-agonists are usually taken together with inhaled corticosteroid medicines. * Leukotriene modifiers (montelukast, zafirlukast, and zileuton), which are used either alone to treat mild persistent asthma or together with inhaled corticosteroids to treat moderate or severe asthma. * Cromolyn and nedocromil, which are used to treat mild persistent asthma. * Theophylline, which is used either alone to treat mild persistent asthma or together with inhaled corticosteroids to treat moderate persistent asthma. People who take theophylline should have their blood levels checked to be sure the dose is appropriate. If you stop taking long-term control medicines, your asthma will likely worsen again. Many people with asthma need both a short-acting bronchodilator to use when symptoms worsen and long-term daily asthma control medicines to treat the ongoing inflammation. Over time, your doctor may need to make changes in your asthma medicine. You may need to increase your dose, lower your dose, or try a combination of medicines. Be sure to work with your doctor to find the best treatment for your asthma. The goal is to use the least amount of medicine necessary to control your asthma. Most asthma medicines are inhaled. They go directly into your lungs where they are needed. There are many kinds of inhalers, and many require different techniques. It is important to know how to use your inhaler correctly. Use a Peak Flow Meter As part of your daily asthma self-management plan, your doctor may recommend that you use a hand-held device called a peak flow meter at home to monitor how well your lungs are working. You use the peak flow meter by taking a deep breath in and then blowing the air out hard into the peak flow meter. The peak flow meter then gives you a peak flow number that tells you how fast you moved the air out. You will need to find out your "personal best" peak flow number. You do this by recording your peak flow number every day for a few weeks until your asthma is under control. The highest number you get during that time is your personal best peak flow. Then you can compare future peak flow measurements to your personal best peak flow, and that will show if your asthma is staying under control. Your doctor will tell you how and when to use your peak flow meter and how to use your medicines based on the results. You may be advised to use your peak flow meter each morning to keep track of how well you are breathing. Your peak flow meter can help warn you of a possible asthma attack even before you notice symptoms. If your peak flow meter shows that your breathing is getting worse, you should follow your emergency asthma action plan. Take your quick-relief or other medicines as your doctor directed. Then you can use the peak flow meter to see how your airways are responding to the medicine. Ask your doctor about how you can take care of your asthma. You should know: * What things tend to make your asthma worse and how to avoid them * Early signs to watch for that mean your asthma is starting to get worse (like a drop in your peak flow number or an increase in symptoms) * How and when to use your peak flow meter * What medicines to take, how much to take, when to take them, and how to take them correctly * When to call or see your doctor * When you should get emergency treatment Treating Asthma in Children Children with asthma, like adults with asthma, should see a doctor for treatment of their asthma. Treatment may include allergy testing, finding ways to limit contact with things that bring on asthma attacks, and taking medicine. Young children will need help from their parents and other caregivers to keep their asthma under control. Older children can learn to care for themselves and follow their asthma self-management plan with less supervision. Asthma medicines for children are like those adults use, but doses are smaller. Children with asthma may need both a quick-relief (or "rescue") inhaler for attacks and daily medicine to control their asthma. Children with moderate or severe asthma should learn to use a peak flow meter to help keep their asthma under control. Using a peak flow meter can be very helpful because children often have a hard time describing their symptoms. Parents should be alert for possible signs of asthma in children, such as coughing at night, frequent colds, wheezing, or other signs of breathing problems. If you suspect that your child has asthma or that your child's asthma is not well controlled, take your child to a doctor for an exam and testing. Your doctor will choose medicines for your child based on the child's symptoms and test results. If your child has asthma, you will need to go to the doctor for regular followup visits and to make sure that your child uses the medicines properly. Treating Asthma in Older Adults Older adults may need to adjust their asthma treatment because of other diseases or conditions that they have. Some medicines (like beta blockers used for treating high blood pressure and glaucoma; aspirin; and nonsteroidal anti-inflammatory drugs) can interfere with asthma medicines or even cause asthma attacks. Be sure to tell your doctor about all medicines that you take, including over-the-counter ones. Using steroids may affect bone density in adults, so ask your doctor about taking calcium and vitamin D supplements and other ways to help keep your bones strong. Treating Asthma in Pregnancy If you are pregnant, it is very important to both you and your baby to control your asthma. Uncontrolled asthma can lower the oxygen level in your blood, which means that your baby gets less oxygen too. Most asthma medicines are generally safe to take during pregnancy. Doctors recommend that it is safer to take asthma medicines during pregnancy than to take the chance that you will have an attack. If you are pregnant or thinking about becoming pregnant, talk to your doctor about your asthma and how to have a healthy pregnancy. Treating Exercise-Induced Asthma Regular physical activity is important for good health. If exercise brings on your asthma symptoms, talk to your doctor about the best ways to control your asthma when you are active. Some people with asthma use inhaled, quick-relief medicines before exercising to keep symptoms under control. If you use your asthma medicines as directed, you should be able to take part in any physical activity or sport you choose. Many Olympic athletes have asthma.