Some people can develop a cough due to exposure to allergens. Cough variant asthma, upper airway cough syndrome due to allergic rhinitis, and allergic cough can cause a person to develop an allergic cough. 1. Allergic coughs are prolonged, with most patients coughing for more than 8 weeks. If the cough is followed by anti-inflammatory, antiseptic and cough suppressant medication but remains bad and does not infect others, one should suspect if it is an allergic cough and go to the hospital for appropriate treatment. 2. If you have a cough after smelling irritating gases, touching pollen or animal hair, or eating the next kind of food, you may have an allergic cough. The above-mentioned substances are common allergens, and one of the symptoms of discomfort that some people experience after being exposed to these substances is coughing. 3. It appears in spring and autumn and intensifies at night. Allergic cough occurs in spring and autumn, often in children and people with allergies. At night, these people’s coughs can intensify. If you hit all the points, you should not treat yourself but go to the hospital. These are the common manifestations of allergic cough. People who are allergic to a certain type of substance should try to minimize their exposure to that type of substance to avoid triggering a cough. Such patients should undergo allergen testing to be informed of which allergen is present, try to avoid contact, and use appropriate treatment.