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 Liao Bin
Pulmonology
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"What are the usual allergens for allergic cough?"

Allergic coughs can potentially be triggered by certain factors, such as exposure to allergens; common indoor allergens include dust mites and some fungi. Sometimes, contact with sensitizing substances can cause allergies, with common allergens including grain dust, pollen, flour, and animal fur. Additionally, some patients may experience allergic coughs triggered by exposure to certain medications, foods, and additives. Allergic coughs can also be caused by respiratory infections. Exposure to tobacco, air, and environmental pollution can also affect some patients, with common sources including cooking fumes from gas, smoke from cigarettes, and insecticide sprays. Therefore, patients with allergic coughs should avoid these risk factors and properly use inhaled corticosteroids to manage their condition.

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Written by Wang Xiang Li
Emergency Medicine
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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.)

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Written by Zhou Hui Ming
Pediatrics
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Symptoms of baby food allergies

Babies generally start adding supplementary food between four to six months old. Some children may exhibit symptoms after introducing additional foods, which resemble those caused by allergies. These symptoms primarily appear on the skin, in the oral cavity, digestive tract, and respiratory tract. They might present in one area or multiple areas. The most common symptoms include constipation, bloating, vomiting, diarrhea, and pain. Additionally, manifestations on the skin can include eczema, severe cases may develop urticaria or other types of allergic dermatitis.

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Written by Wang Chun Mei
Pulmonology
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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 Deng Bang Yu
Otolaryngology
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Do you need to check for allergens for allergic rhinitis?

Allergic rhinitis is a type of hypersensitivity disease. The first thing we need to know about allergic rhinitis is that it requires allergen testing. Traditionally, the diagnosis of allergic rhinitis is based on clinical symptoms, without involving etiological diagnosis. Testing for allergens is aimed at diagnosing based on its etiology. Secondly, we need to be aware of the allergens responsible for allergic rhinitis, which include food allergies and asthma-related allergies. By identifying food allergens, we can avoid consuming these substances in daily life. For instance, if one is allergic to fish and seafood, they should avoid eating these foods. Similarly, if allergic to mangoes, one should also avoid mangoes. Thus, overall, it is necessary to identify the sources of allergens in allergic rhinitis.