An allergic cough is a dry, persistent cough caused by an allergic reaction to airborne irritants like pollen, dust mites, or pet dander, leading to airway inflammation and irritation. It often accompanies other allergy symptoms, such as sneezing, a runny or stuffy nose, and itchy eyes. Treatment can include avoiding triggers, taking antihistamines, using nasal sprays, and in some cases, seeing a doctor for stronger medication or allergy testing. Causes and triggers Immune response: When you inh