Other Asthma Triggers
Friday, March 16, 2012 - 17:14A host of other things can bring on an asthma attack in susceptible people. These include:
- Respiratory infections
- Irritants
- Industrial fumes and dusts at work
- Air pollution
- Exercise
- Nighttime
- Weather
- Emotions
- Hormonal changes
- Health problems
Respiratory Infections
Asthma can be made worse by common colds, sinusitis, and influenza (the flu). Viral infections are known triggers of asthma attacks. Antibiotics don't work against viral infections, but medication to open up the air passages can help.
How-To Information To prevent asthma episodes triggered by respiratory infections:
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If you notice one of the following changes, suspect a respiratory infection:
- Fever or chills, sore throat, muscle aches, runny nose, cough
If you have a respiratory infection and experience signs that indicate you are losing control of your asthma, call your doctor as soon as possible. These signs include:
- Shortness of breath or wheezing
- Cough that is getting worse
- Production of a large amount of
mucus , or mucus that is thicker than usual or is changed in color - Awakening at night with asthma
- Increased need for your rescue inhaler
Follow your doctor's instructions and your asthma should quickly be brought under control again:
- Take whatever medicine your doctor prescribes, exactly as directed.
- Don't stop taking the medicine unless your doctor tells you to, even if you feel better.
- Follow directions for clearing your lungs of mucus.
- Keep your doctor informed of any change in your condition.
Irritants
Common products in the home can
- Cleaning solvents
- Paints, thinners, stains, varnish, and shellac
- Liquid chlorine bleach
- Sprays such as furniture polish and oven cleaners
- Personal products with strong smells such as hair sprays, perfumes, spray deodorants, and cosmetics
How-To Information To prevent asthma episodes triggered by irritants:
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Industrial Fumes And Dusts At Work
Reactions to industrial irritants may occur suddenly or take years to develop. Substances known to trigger asthma episodes in susceptible people do so through either an immune response or through irritation of air passages.
Industrial substances causing an immune response include:
- Wood products (western red cedar)
- Dusts (flour, cereal)
- Metals (platinum, chromium, soldering fumes)
- Mold (decaying hay)
Industrial substances causing an asthma response because of irritation include:
- Dusts (cotton)
- Gases (sulfur dioxide, chlorine gas)
How-To Information Because of the nature of many industrial jobs that bring workers into contact with these known asthma triggers, avoidance is usually not possible. The best protection is the use of approved personal protection and safety equipment associated with your job:
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Air Pollution
There are certainly some "bad days" when it comes to air quality in some of the larger cities. Fine particles, gases, vapors, and smoke are added to the air near industrial areas. These substances can serve as powerful irritants of the sensitive and inflamed airways of some people with asthma. Inhaled pollutants that can act as asthma triggers include:
- Oxides of nitrogen
- Ozone
- Fine particles
- Sulfur dioxide
Cigarette smoke is a common indoor pollutant that can aggravate inflamed air passages.
How-To Information To prevent asthma episodes triggered by substances in the air:
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Exercise
Exercise can bring on an asthma episode in some people. Symptoms of asthma may begin after several minutes of exercise or after the exercise is over. They may last for a few minutes to an hour and usually get better by just stopping the exercise, but can continue even with resting.
These symptoms may limit play and interfere with performance. The severity of the asthma episode will depend on how intense and for how long the person has exercised. The symptoms are not caused by the physical effort itself, but by the loss of heat and moisture from the air passages that occurs when dry, cold air is inhaled rapidly.
Nice To Know Q: Can I still play the same sports I used to? A: Most adults with asthma under good control can play sports if a good treatment plan has been worked out. Swimming is particularly encouraged by many physicians, but stick with the sports you most enjoy. Exercise and sport is most definitely encouraged for people with asthma. Remember that one of the goals of asthma control is to allow normal activities to be enjoyed. Exercise is important for both general health and for the health of the lungs. Therefore, if the exercise you enjoy seems to be acting as an asthma trigger for you, ask your doctor about taking medicine before exercise so that the episode can be prevented. |
How-To Information To prevent asthma episodes triggered by exercise:
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Nice To Know As many as 10% of all Olympic athletes are asthmatic. |
Nighttime
Asthma symptoms that occur at night are part of nighttime asthma, or nocturnal asthma, a very common condition for many people with asthma. Sleep is not the actual trigger, but while we sleep the airways tend to narrow and mucus tends to build up in the airways, often triggering a bout of coughing. There are many causes of nocturnal asthma, including:
- At night there are changes in body chemicals, which allow airway
inflammation to increase. - The drop in body temperature at night causes airway cooling and narrowing.
- Allergens encountered in the daytime may produce a delayed response three to eight hours later, just in time for nighttime sleep.
- Increased drainage from the sinuses while lying down may trigger a reaction in sensitive airways.
- Lying horizontally may allow some of the stomach contents to rise up into the esophagus. This is called reflux and may trigger an asthma episode in sensitive individuals.
For more information about gastro esophageal reflux disease, go to Heartburn (GERD).
How-To Information To help prevent nighttime asthma symptoms:
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Weather
The onset of asthma may be seasonal. Weather affects different people in different ways. For example:
- Heat, humidity, air pollution, and pollen counts in the summer can trigger an asthma episode in some people.
- In others, the wet conditions of the spring and fall may encourage the growth of certain molds that can trigger an attack.
- For others, the buildup of smoke, animal dander, and mites in a sealed house in the winter can aggravate asthma. Or, the cold temperature outside may serve as a trigger during physical activity.
How-To Information To prevent asthma episodes triggered by weather:
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Emotions
Emotions do not cause asthma, but sometimes laughing, crying, and yelling stimulates nerves that cause the tiny muscles in the walls of airways to tighten in sensitive lungs.
People with asthma can become angry or frustrated with their condition and may refuse to take the medicines that will help them. Thus, in an indirect way, emotions such as anger may contribute to asthma symptoms.
How-To Information To help minimize asthma symptoms due to emotions:
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Hormonal Changes
In some women, asthma symptoms increase at a particular time of their menstrual cycle, usually just before their periods. Asthma symptoms may become better or worse during pregnancy, because they may be influenced by hormonal changes.
How-To Information Ask your doctor if adjusting your asthma medication during times of hormonal change would help you better control your asthma. |
Health Problems
Asthma symptoms can be triggered by a variety of health-related factors such as:
- Respiratory infections such as the common cold and flu
- Sinusitis (inflammation of the linings of the sinus cavities). Excess mucus production from the nose and sinuses ("postnasal drip") may drain into the throat and airways. This drainage combined with the release of body chemicals from inflamed sinus linings may act as trigger to irritate the linings of the airways, especially at night.
For more information about sinusitis, go to Sinusitis.
- Allergies (pollen, mold, dander)
- Gastro esophageal reflux disease (GERD) is a disorder in which the acid contents of the stomach enter the lower part of esophagus. In sensitive individuals, this may cause the asthma to worsen. Heartburn and nighttime asthma symptoms may indicate GERD disease. Inform your doctor of your nighttime difficulty with breathing and your heartburn symptoms. The doctor will prescribe medication that will reduce the symptoms of GERD and provide you with greater
asthma control.For more information about gastro esophageal reflux disease, go to Heartburn (GERD).