After the onset of allergic rhinitis, the cough occurs because allergens stimulate the patient’s nasal mucosa and pharyngeal mucosa, including airway hyperreactivity, such a situation will be very sensitive, especially after the patient is particularly sensitive to hot and cold air or special odors will cough, there may be a certain itchy feeling. After that, oral anti-allergy drugs need to be applied to reduce the degree of airway pharyngeal mucosa and nasal mucosa sensitivity, and the commonly used drugs in clinical practice are montelukast sodium, all of which have good efficacy in clinical practice. Patients can also consider using budesonide suspension to do nebulized inhalation treatment, which can also effectively reduce the patient’s cough and reduce the degree of pharyngeal sensitivity, and the patient’s condition will improve after about a week of normal medication.