Patients with red, itchy eyes may be caused by allergies, but also by infections, dry eyes, etc. Patients can follow the doctor’s instructions to use medication to relieve eye discomfort. The conjunctival tissue and skin of the eyes are directly exposed to the external environment, which can easily come into contact with allergens or trigger an allergic reaction, resulting in red, itchy eyes. Patients should pay attention to avoid rubbing the eyes, so as not to aggravate the symptoms of allergy, patients can follow the doctor’s instructions to make use of anti-allergy eye drops for treatment, such as azelastine hydrochloride eye drops, ketotifen fumarate eye drops and so on, to relieve the discomfort. If the patient’s eyes are infected, eye congestion, itching and other symptoms, the patient can follow the doctor’s instructions to use anti-infective drugs, such as tobramycin eye drops, ganciclovir eye drops and other medications to control inflammation, relieve eye discomfort. Dry eye can also cause patients with red, itchy eyes, patients can follow the doctor’s instructions to use artificial tears eye drops to relieve eye discomfort, such as sodium vitrate eye drops, polyethylene glycol eye drops and so on. It is recommended that patients with severe red and itchy eyes should consult a doctor to assess their condition and follow the doctor’s instructions for treatment.