What causes a dry cough and an itchy throat?

The causes of dry cough and itchy throat may involve various diseases and factors, mainly including: 1. Upper respiratory tract infection: Caused by pathogen infection, decreased immunity, etc., often accompanied by symptoms such as nasal congestion, runny nose, and sore throat. 2. Pharyngitis: Associated with environmental factors, pathogen infection, psychological factors, etc., leading to dryness and pain in the throat, subsequently causing dry cough and throat itching. 3. Acute bronchitis: Caused by infection with pathogenic microorganisms, environmental factors, etc., inflammatory mediators irritate the bronchial mucosa, triggering dry cough and throat itching. 4. Allergic factors: After exposure to allergens, the pharyngeal mucosa becomes allergic, resulting in dry, itchy throat and coughing. The specific cause needs to be determined based on the patient's individual circumstances and medical examinations.