In general, acute conjunctivitis recovers gradually in about 2-3 weeks, with photophobia, lacrimation, conjunctival congestion, and increased secretions occurring during the course of the disease. Acute conjunctivitis is mainly caused by bacterial or viral infection and usually develops in both eyes at the same time or 1-2 days apart, with an incubation period of 1-3 days and a peak in the course of the disease about 4 days after onset. During the disease period, antibacterial eye drops or antiviral eye drops are needed to kill the pathogenic microorganisms, and the entire course of the disease is about 2-3 weeks. In the case of epidemic keratoconjunctivitis, the duration of the disease is relatively long, about 1 month. Patients with acute conjunctivitis are advised to avoid rubbing their eyes with their hands to avoid aggravating the condition and to pay attention to keeping the eyes clean. In addition, acute conjunctivitis is somewhat contagious. Patients must use their own toiletries alone and try to avoid direct contact with others.