Itchy eyes may be caused by conjunctivitis, dry eye or allergic reactions to the eye surface, and can be treated with antibiotics, antiviral drugs, artificial tears, mast cell stabilizers, antihistamines and other drugs according to the cause. 1. Conjunctivitis: when bacterial or viral infections cause eye redness, eye pain and itching, antibiotic drops such as tobramycin or levofloxacin and antiviral drugs such as acyclovir drops can be used for less severe infections, and oral medication can be used for severe infections. 2. Dry eye: due to bad eye habits, environmental factors, body aging and other causes of dry eye, dry eyes, itchy, abnormal tearing and other symptoms, generally can be prescribed by the application of sodium vitrate eye drops and other artificial tears to relieve the symptoms. 3. Eye surface allergy: If the itchy eyes are caused by allergy, you can use anti-allergy mast cell stabilizers such as sodium cromoglycate eye drops, antihistamines such as olopatadine hydrochloride eye drops and so on. Itchy eyes should pay more attention to eye hygiene, go out and suggest wearing glasses to avoid foreign objects into the eye, long-term symptoms of serious unrelieved, it is recommended to go to the regular hospital examination and treatment, so as not to delay the condition. Drugs need to be used under the guidance of a doctor, do not blindly use their own medication.