Red eye refers to acute conjunctivitis, and its recovery time is related to a number of factors; usually, recovery can be gradual in 1 to 2 weeks. If the conjunctivitis patient’s condition is mild and treated promptly, he or she can usually recover in about 1 week. However, if the causative organism is highly virulent and the patient is in poor physical condition, the condition may deteriorate rapidly, resulting in a relatively long convalescence time of about 2 weeks. Acute conjunctivitis is mostly related to bacterial infection, and its treatment is based on the topical use of broad-spectrum antibiotics, such as levofloxacin eye drops, tobramycin eye drops and so on. Acute conjunctivitis has a certain degree of self-limitation, the use of drugs can effectively shorten the course of the disease. If patients actively cooperate with the treatment, the general prognosis is better. It is recommended that patients with conjunctivitis consult a doctor in a timely manner to assess their condition and follow the doctor’s instructions for treatment.