Red eye is the common name for acute or subacute bacterial conjunctivitis and other diseases. Treatment with topical medications such as anti-infective eye drops in the early stages of the disease can usually control the condition, but if the patient develops a systemic infection, systemic treatment will be required. When acute bacterial conjunctivitis, subacute bacterial conjunctivitis, acute catarrhal conjunctivitis and other bacterial infections occur, conjunctival congestion, pain, itching and other discomforts, and some patients will also have photophobia, tearing and so on. In the early stages of the disease, patients can use topical medications to control, most can inhibit the further development of the disease. In the early stage, most of the local topical drugs, such as tobramycin eye drops, azithromycin eye drops, ofloxacin eye drops and other anti-infective drugs, to relieve eye discomfort. However, if the patient develops fever and other discomfort, the patient can be treated with antibiotics such as cefaclor orally or intravenously to control the infection. Patients with conjunctivitis are advised to seek timely medical attention to assess their condition and follow the doctor’s instructions for treatment.