Allergic cough is a type of cough associated with exposure to allergens that act on the body (e.g., pollen, animal fur, causing a metabolic reaction that leads to coughing. Allergic cough is a common respiratory disease with a high incidence in winter and spring. Allergic cough is caused by the patient’s exposure to allergens. If the patient is removed from the allergenic environment such as pollen, air pollution, harmful gases, viruses and other allergens, the patient can heal on his own. In another case, the patient is exposed to allergens due to a change of environment and leaves the new environment to return to the original environment, away from the allergens, in which case the patient can also heal on his own. However, in the vast majority of cases, allergens are everywhere in the patient’s life and work, and it is difficult to locate all of them. For example, if the patient is allergic to pollen and air, he or she will have recurrent attacks, and it is difficult to cure in this case. For the treatment of allergic cough, the first choice should be to find the allergens and keep them away. Anti-allergic, anti-inflammatory and cough suppressant treatments are also needed to relieve the condition and reduce the patient’s pain. Patients with allergic cough should try to stay away from allergens that cause allergies, and they should pay attention to preventing the occurrence of colds. At the same time, they can strengthen their body and use dietary therapy to improve their immune system.