What is “pink eye”? “Pink eye” is the common name for acute or subacute bacterial conjunctivitis, also known as “acute catarrhal conjunctivitis”, which is characterized by redness, foreign body sensation and increased discharge from the eyes. It is characterized by eye redness, foreign body sensation, increased discharge, and other manifestations. Clinical manifestations: rapid onset, incubation period of 1 to 3 days, onset in both eyes simultaneously or 1 to 2 days apart. The onset of the disease culminates in 3 to 4 days and gradually decreases later. It often presents with eye discomfort such as eyelid redness, eye redness, eye pain, foreign body sensation, and discharge (the discharge is mostly yellowish-white, purulent and sticky, often sticking to the upper and lower eyelashes, making it difficult to open the eyes in the morning). Vision is generally unaffected. The duration of the disease is usually less than 3 weeks. Treatment: Treatment is based on local medication. When there is a lot of secretion, the conjunctival sac can be flushed with saline or a clean cotton swab can be dipped to remove the secretion before medication is administered (be careful when flushing to avoid damaging the corneal epithelium, and do not flow the flushing solution into the healthy eye to avoid cross-contamination). Currently, broad-spectrum aminoglycosides or quinolones (such as tobramycin eye drops and ofloxacin eye drops) and erythromycin eye ointment are often used; in the acute stage, the eye can be spotted every 1 to 2 hours. ”The disease is highly contagious and can be transmitted by contact, and can be prevalent in places where people are concentrated (such as kindergartens, schools, factories, barber stores, swimming pools, etc.). Prevention: pay strict attention to personal hygiene, wash hands regularly, avoid contact with tears and secretions of patients, wash hands after going out and coming home, and wash hands after giving medication to patients. Patients in the acute stage should be isolated and not share toiletries with others; try not to wipe your eyes with your hands and sleeves to prevent the spread of the disease by bringing the secretions to other places.