How to test for allergens in allergic asthma

Written by Yuan Qing

Pulmonology

Updated on September 26, 2024

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Allergic asthma is a subtype of bronchial asthma. As the name suggests, allergic asthma refers to asthma symptoms that are related to contact with external allergens, such as dust, pollen, dust mites, pet dander, etc. When these substances are inhaled into the trachea, they can trigger asthma symptoms. Clinically, when testing which substances a patient is allergic to, it is called allergen testing. Common methods include blood tests and skin prick tests, which can be combined for comparison to identify the allergens.

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Written by Wang Chun Mei

Pulmonology

55sec

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How long will it take for allergic asthma to improve after avoiding allergens?

Allergen-induced asthma is a very common disease in clinical practice. The recovery time after exposure to allergens varies from person to person. Some patients, who are less sensitive to certain allergens, usually experience gradual improvement in symptoms after avoiding the allergen, which may take two to three hours. However, some allergens may cause more severe allergic asthma attacks, in which case medication is necessary to manage the symptoms. Commonly, appropriate use of anti-allergy medication and drugs to relieve bronchospasm are required for relief. Therefore, the severity of allergic asthma symptoms caused by different allergens and the individual’s physical constitution varies. Thus, the recovery time after exposure to allergens varies from person to person.

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Written by Li Jian Wu

Pulmonology

33sec

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How to test for allergens in allergic cough

For allergic cough, you can check for allergens by visiting a dermatology department for a blood test. Based on the results of the test, you can identify the allergens and isolate them to prevent allergic cough. In daily life, pay attention to a reasonable diet. Avoid overly greasy, spicy, or stimulating cold foods. It's beneficial to drink more warm water to boost metabolism, or you can boil some pear syrup, which helps relieve cough and dissolve phlegm. Make sure to rest adequately and avoid excessive fatigue.

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Written by Xu Peng

Pulmonology

48sec

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What are the common allergens for allergic cough?

Common allergens for allergic cough include pollen, dust, dust mites, and seafood. If a patient is allergic to these allergens, they should avoid contact with them as much as possible. It is important to strengthen the body through regular exercise and a balance of work and rest. Increase nutrition and eat more high-quality, high-protein foods to enhance the body's resistance. Additionally, keep warm and avoid catching cold, especially during the winter and spring seasons when temperature differences between morning and evening are significant, and adjust clothing accordingly. Change unhealthy lifestyle habits: do not smoke, do not drink alcohol, do not stay up late, and avoid the dangers of secondhand smoke to protect lung function.

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Written by Li Xiao Lin

Emergency Department

1min 7sec

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If you are allergic to lobster, will you be allergic to other seafood?

When allergic to lobster, consuming other seafood may also trigger allergies. Therefore, in terms of diet, besides avoiding lobster, other seafood, as well as fruits like mango, should also be avoided. Additionally, when outdoors, it's important to be mindful of the environment to reduce exposure to pollen that can cause allergies. It's also advisable to avoid spicy, sour, or pungent foods and yeast-containing products. Drinking more water and eating fresh vegetables and fruits is recommended. Engaging in regular exercise to strengthen the body can help reduce the frequency of allergic reactions. Furthermore, it is suggested to undergo further medical examinations at a hospital to identify specific allergens and prevent future allergic incidents that could pose dangers. If an allergic reaction occurs after eating, immediate oral administration of antihistamines such as cetirizine or loratadine is necessary to prevent worsening of the condition, or seek immediate medical treatment at a hospital. (Medication should be taken under the guidance of a physician.)

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Written by Wang Xiang Li

Emergency Medicine

1min 6sec

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Alcohol allergy symptoms

If a patient is allergic to alcohol, the following symptoms may occur: the patient will feel itchy all over, their skin will turn red, and they may experience welts and rashes. Some patients may also experience chest tightness, shortness of breath, palpitations, dizziness, and even fainting, profuse sweating, and transient loss of consciousness. If a patient exhibits profuse sweating along with transient fainting and loss of consciousness, this indicates a severe condition that requires emergency medical treatment at a hospital. Anti-allergic measures should be taken to alleviate the allergy symptoms. Additionally, due to the allergy, the patient may experience a relative insufficiency in blood volume, necessitating fluid replenishment treatment. Therefore, patients with an alcohol allergy should avoid exposure to alcohol to prevent triggering allergic symptoms and endangering their lives. (Medications should be used under the guidance of a doctor.)