Watery eyes and itchy throat are usually caused by allergies. When there are a lot of allergens suspended in the air, such as smoke, dust, pollen, willow floss, etc., the above allergens may come into direct contact with the conjunctival tissues of the eyes as well as the mucosal tissues of the pharynx along with the respiratory contact, which induces an allergic reaction, and the patient will feel itchy eyes, watery eyes, itchy throat, coughing, and the conjunctival membrane may be congested with congestion of the mucous membranes of the pharynx. Treatment can be oral anti-allergy drugs, such as loratadine, cetirizine hydrochloride. Anti-allergic eye drops, such as nafamivir drops and olopatadine hydrochloride drops, can also be placed in the eyes. Watery eyes and itchy throat can also be caused by other reasons, such as colds and flu, etc. It is recommended to consult a doctor promptly and follow the doctor’s instructions.