Itchy throat and dry cough for 3 years may be caused by chronic pharyngitis, chronic bronchitis, allergic pharyngitis and other diseases, which need to be actively treated for specific diseases. 1. Chronic pharyngitis: consider factors related to acute pharyngitis repeated episodes or combined with the stimulation of nasal diseases. Cediriodine tablets, peppermint throat tablets, clearing the throat and throat particles and other drugs can be given. It is also necessary to insist on outdoor activities and physical fitness, which can help improve the patient’s symptoms. 2. Chronic bronchitis: Chronic bronchitis refers to chronic non-specific inflammation of the trachea, bronchial mucosa and surrounding tissues, and the patient’s main manifestation is coughing and coughing up sputum. Acute episodes are mostly related to bacterial infections and can be treated with drugs such as Ambroxol Hydrochloride, Amoxicillin, Cefuroxime, and Compound Licorice Combination. 3. Allergic pharyngitis: chronic cough may be caused by long-term contact with allergens and stimulation by allergens in allergic patients. It is recommended to find and detach from the allergens and give antihistamines such as loratadine and cetirizine for treatment. Or desensitization treatment can be carried out in order to reduce the occurrence of allergy. Dry and itchy throat, persistent cough, it is recommended to actively seek medical attention to clarify the diagnosis, and follow the doctor’s instructions to standardize the use of drugs and treatment.