Red eye is caused by bacterial infection and is a common infectious eye disease. It is generally prevalent in the warm spring and summer seasons, but those caused by S. pneumoniae are mostly seen in winter. Symptoms of pediatric pink eye 1, incubation period 1-3 days, acute onset, both eyes at the same time or 1-2 days apart. Patients feel itchy and foreign body sensation, and then burning, photophobia, eyelids are difficult to open due to swelling. Sometimes the patient feels and appears to have excessive secretion, and vision is restored immediately after removing the secretion. The symptoms of pediatric pink eye 2. The secretions are mucus or mucopurulent and can stick to the eyelid margin and eyelashes. In heavy cases, the fibrin in the secretion coagulates into a milk, attached to the surface of the conjunctiva of the eye, which is easy to peel off with tweezers, leaving a slight bleeding surface, but no tissue loss. The symptoms of pediatric red eye 3, the conjunctiva of the eye is congested, with the lid conjunctiva and fornix conjunctiva being the most obvious, sometimes combined with bulbar conjunctival edema and eyelid redness. There are often hemorrhagic spots under the conjunctiva, and the bulbar conjunctiva is edematous.