Red eye is contagious, and its full name is epidemic viral keratoconjunctivitis. It is contagious by contact and is highly contagious, so those in close contact with the patient should take precautions. For example, towels, glasses, handkerchiefs and other everyday items should be cleaned promptly after use so that they are not contagious when others come in contact with them. Household items should be used separately from family members, avoid sharing towels, etc. Family members should clean their hands in advance to avoid contact with the eyes when helping patients to order eye drops to prevent infection.