The patient’s eyes are always itchy, which may be caused by allergic conjunctivitis and blepharitis. Allergic conjunctivitis is the most common eye allergic diseases of the eye, usually because of the allergic patient’s conjunctival tissue and willow, cotton wool, pollen and other suspended in the air after contact with allergens, triggering an allergic reaction caused by the patient in addition to itchy eyes, there will also be conjunctival congestion, conjunctival edema, eye secretion increase and other uncomfortable symptoms. Blepharitis is generally due to patients do not pay attention to eye hygiene, caused by the eyelid edge of the chronic bacterial infection caused by the inflammation stimulation, the patient can appear in the eyes itchy and other uncomfortable symptoms, the patient can follow the doctor’s instructions for the use of antibiotic eye drops or eye ointment treatment, such as levofloxacin eye drops, erythromycin eye ointment, and so on. It is recommended that patients with obvious itchy eyes should consult the hospital in time to assess their condition and under the guidance of the doctor for treatment.