How is allergic cough caused without allergens?

Written by Wang Chun Mei
Pulmonology
Updated on September 05, 2024
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Allergic cough is a very common type of non-infectious cough, triggered by many factors. Generally, some patients may experience this cough due to exposure to certain harmful gases or irritants, while others might react to pollen, dust mites, or animal dander. Additionally, a portion of patients could be affected by the inhalation of cold air or due to genetic factors. Since it is an allergic cough, there must be triggering factors causing it. Therefore, for allergic cough, it is essential to eliminate the allergens and appropriately administer anti-allergy medications for symptomatic treatment.

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Written by Wang Chun Mei
Pulmonology
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Can an allergic cough be cured by staying away from the allergen?

Allergic cough is a very common type of cough clinically, with many complex triggers. Some triggers may be related to exposure to allergens in the environment, while others may be due to oral medications or certain foods that cause an allergic cough. Therefore, depending on the different triggers, some cases of allergic cough might persist even after removing the allergen, as the severity of allergic cough varies. For mild allergic coughs, some patients may see gradual improvement in symptoms shortly after avoiding the allergen. However, most patients with allergic cough might continue to experience a persistent dry cough even after avoiding the allergen.

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Written by Guo Xiao Yun
Pulmonology
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What are the allergens for allergic cough?

Allergic cough can be triggered by many allergens. For example, during pollen allergy seasons, one may react to pollen, and it is also possible to react to dust mites, dust, animal dander, paint, feed, and foods that may include allergens like seafood, eggs, and milk. Cold air can also trigger reactions in patients with allergic cough. When individuals with allergic cough come into contact with the aforementioned allergens, it may enhance the reactivity of their airways, causing persistent spasmodic contraction. As a result, patients may experience persistent, irritating dry coughs. In such cases, it is advised to promptly remove oneself from exposure to the allergens and take antihistamines orally, such as loratadine. It is also advisable to avoid contact with these allergens routinely to prevent the onset of allergic cough. (Please follow the doctor's prescription when using medications.)

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Written by Wang Xiang Li
Emergency Medicine
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Symptoms of alcohol allergy shock

Patients with an allergy to alcohol can experience allergic shock, exhibiting symptoms like chest tightness, palpitations, a sensation of throat blockage, breathing difficulties, and a flushed face. Additional symptoms include dry mouth, dizziness, blurred vision, numbness in the face and limbs, and circulatory system failure, indicated by chills, cold sweats, cyanosis, restlessness, a weak pulse, and even a drop in blood pressure. Some patients may also experience loss of consciousness, coma, convulsions, and incontinence. Due to the alcohol allergy, patients may show allergic reactions like skin itching, hives, or other rashes. A minority of patients may also have abdominal pain, diarrhea, nausea, vomiting, sneezing, and fever.

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Written by Li Rui
Otolaryngology
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How to identify allergens in allergic rhinitis

Allergic rhinitis is a relatively common otolaryngological disease. The main cause is the body's immune response triggered by contact with allergens, leading to an imbalance in the immune status and causing a series of clinical symptoms. Therefore, in terms of treatment, it is first necessary to identify the specific types of allergens. Currently, there are two methods for allergen testing. The first method is ex vivo allergen screening, which involves blood tests. The second method is the skin prick test to identify specific allergens. Both methods are commonly used at present, and generally, choosing one of them is sufficient. However, a subset of patients may need a combination of both tests for a comprehensive assessment.

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Written by Li Rui
Otolaryngology
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How to Test for Allergens in Allergic Rhinitis

Allergic rhinitis is considered an autoimmune disease, mainly triggered by the body's immune response after contact with allergens, leading to related clinical symptoms such as itchy nose, runny nose, and sneezing. Generally, it is necessary to conduct an allergen test. Currently, there are mainly two methods for allergen screening. The first is the skin prick test, and the second is a blood test. Both methods are commonly used clinically. Relatively speaking, the skin prick test may induce higher risks of side effects or allergies. Some patients may need to undergo both tests and look at the results comprehensively, but most patients can choose one of the two.