The patient’s eyes are red and itchy, usually due to allergies or infections, the patient can follow the doctor’s instructions to use anti-allergy or anti-infection eye drops treatment, to promote the recovery of the condition. Patients with red itchy eyes, usually due to allergic conjunctivitis, patients can follow the doctor’s instructions to use anti-allergy drugs, through the antagonism of histamine receptors so as to block the allergic reaction, but also through the inhibition of mast cells release allergic transmitters to alleviate the symptoms, such as orotidine hydrochloride eye drops, azelastine hydrochloride eye drops, fumarate ketotifen eye drops. Bacterial conjunctivitis, blepharitis and other eye infections because of inflammatory stimuli, can also appear eye congestion, itching and other symptoms, patients can follow the doctor’s instructions to use anti-infective drugs, such as levofloxacin eye drops, tobramycin eye drops. It is recommended that patients with red and itchy eyes should consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.