Overview
Allergic asthma is a chronic inflammatory condition. When you inhale an allergen, such as pollen, mold, or dust mites, your lungs become inflamed, and your airways tighten. This type of asthma is very common in both children and adults. Symptoms of allergic asthma can include shortness of breath, coughing, wheezing, stuffy nose, itchy eyes and a rash.
When you have allergies, your body creates a response to something it thinks is a threat — the allergen. Your immune system fires up all of its defenses to try and fight off this danger. Your immune system releases various chemicals that cause inflammation, or swelling, and squeezing of your airways upon exposure to an allergen. You might need to use fast-acting rescue medicines, long-term treatments, or both, further your doctor may recommend a nebulizer. This machine changes asthma medications from a liquid to a mist so it’s easier to get the medicine into your lungs.
If you or a loved one has allergic asthma, it’s important to understand what your triggers are. Once you figure that out, you can take steps to avoid them. As a result, you’ll have fewer and less severe asthma attacks.
Symptoms and Causes
If you have allergic asthma, you may have many of the same symptoms you’d experience with other types of asthma. These symptoms can include:
- Feeling short of breath.
- Coughing frequently, especially at night.
- Wheezing (a whistling noise during breathing).
- Experiencing chest tightness (feeling like something is pressing on your chest).
Allergen exposure can also trigger other symptoms, including:
- A stuffy nose/Congestion
- Nasal drainage
- Itchy or watery eyes.
- A rash or hives.
- Flaky skin
Diagnosis and Tests
Specific types of lung function tests include:
- Spirometry. This measures the amount of air you inhale and exhale and how fast you can exhale. You’ll blow into a mouthpiece connected to a device or computer that looks for narrowing in the bronchial tubes of your lungs.
- Peak flow. A simple test of lung function, you’ll breathe into a small handheld device that measures air pressure as you breathe out. The test can’t diagnose asthma, but it can be used in the lab or at home to keep track of your condition.
- FeNO test. Also known as exhaled nitric oxide testing. You’ll blow into a device that measures the amount of nitric oxide in your airways. Your lungs produce this gas when they become inflamed due to asthma.
- Provocation (trigger) test. This test tells doctors how sensitive your lungs are to certain triggers and is used to help confirm an asthma diagnosis. You may get it if you have asthma symptoms that can’t be diagnosed with other tests. Your doctor will ask you to you inhale a potential asthma allergen and then take a breathing test to measure your response.
- During a skin test, the healthcare provider puts small drops of liquid containing various allergens on your skin. Then, they gently scratch your skin to allow allergens to enter the top layer. If you’re allergic to the substance, your skin will react by swelling or you may develop tiny, raised bumps.In certain cases, a blood test can identify allergic triggers. Allergy blood tests can miss a small percentage of allergies compared to skin testing.
Management and Treatment
Treatment can involve avoiding the allergen or making lifestyle changes, and medications.
Avoiding the allergen
Your provider will help you figure out what’s triggering your asthma and find ways to either avoid or manage these allergens. Often, these triggers are in your environment. Once you know what they are, you can manage your interactions with them. This might mean hiring someone to cut your grass if you know that pollen is a trigger for your asthma, or avoiding places with a lot of animals if dander is a trigger for you.
Depending on what triggers your asthma, other steps you can take include:
- Cleaning your house frequently. This could include frequent mopping and dusting and washing your bedding and pillows in hot water every week.
- Using dust and allergen-proof sheets and pillows on your bed.
- Keeping house and car windows closed during peak pollen season. You can also avoid being outside when pollen counts are highest or wear glasses, face masks or other protective equipment when outdoors.
- Using high-quality filters in your home air conditioning units or running an air purifier.
- Developing an action plan. It’s important to have a plan in place that helps you know when to take certain medications, what to do if the medications aren’t working and who to call in those situations. The plan should include what to do during an asthma attack.
Medical treatment
Medications for allergy-induced asthma may include:
- Leukotriene modifiers: This is the name for a group of medications that treat both allergies and asthma. Montelukast (Singulair®) is one of the most common leukotriene modifiers.
- Allergy shots: Also called immunotherapy, allergy shots can reduce how your immune system reacts to an allergen. It involves getting regular injections (shots) of the allergen to build up your tolerance over time.
- Rescue inhalers: These offer fast relief for asthma symptoms by opening up your airways so you can breathe better.
- Antihistamines: This type of medication reduces mild to moderate allergy symptoms like itching skin or watery eyes. Your provider may suggest taking an antihistamine as part of your treatment plan.
- Corticosteroids: Both oral and inhaled corticosteroids can help prevent allergy-induced asthma symptoms by reducing inflammation in your airways.
- Biologics: These are small proteins that your provider injects to help treat the underlying cause of asthma. This treatment is for moderate or severe allergic asthma.
Conclusion
There isn’t a cure for allergic asthma, but you can reduce your risk of an allergic asthma attack by understanding and avoiding triggers and ensuring you’re using the best medical treatment to manage your asthma.
If you or a loved one has allergic asthma, it’s important to understand what your triggers are. Once you figure that out, you can take steps to avoid them. As a result, you’ll have fewer and less severe asthma attacks.
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