In recent times, the temperature is high, “red eye” patients in the clinic is rapidly increasing, the trend of the spread of the epidemic, so how to prevent and treat “red eye” it? The common name “pink eye” is acute infectious conjunctivitis, which is an acute infectious ophthalmia. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The disease can occur throughout the year and is more common in the spring and summer months. Red eye is an eye disease that is transmitted by contact, such as contact with towels, washing utensils, faucets, door handles, swimming pool water, and common toys used by patients. Therefore, the disease often spreads widely in kindergartens, schools, hospitals, factories and other collective units, causing outbreaks and epidemics. In the early stages of the disease, patients feel hot, burning, photophobic, red eyes, self-conscious eye pain, like entering the sand rolling pain, followed by red eyelids, eye mucus, fear of light, tearing, morning when you get up, the eyelids are often stuck by the secretions, not easy to open. In some patients, small bleeding spots or hemorrhagic spots appear on the conjunctiva, the discharge is mucopurulent, sometimes a layer of gray-white pseudomembrane forms on the surface of the lid conjunctiva, and there can be gray-white infiltrating spots on the edge of the cornea. Red eye does not usually affect vision, but if a large amount of mucopurulent secretion adheres to the corneal surface, there may be temporary blurred vision or iris (rainbow-like aperture in front of the eyes), and once the secretion is wiped away, vision can be clear. If a bacterial or or viral infection affects the cornea, photophobia, tearing, and pain are aggravated, and there is some degree of vision loss. The onset of red eye is rapid, usually starting within 1 to 2 days of infection with bacteria, and most of the disease develops in both eyes. The disease is highly contagious, because the immunity is low after the cure, so the infection can be repeated (such as re-exposure to the patient can also get sick), from a few months of infants to 80 or 90 years old may develop. Epidemic fast, after suffering from pink eye, often one person is sick, in 1 to 2 weeks caused by the whole family, kindergartens, schools, factories and other widely spread, regardless of men, women and children, a large number of patients infected. The main focus of “pink eye” is prevention, so do not touch the patient’s used washing utensils, handkerchiefs and medical instruments used for treatment. Once in contact with the patient, you must wash your hands to prevent cross-infection. It is best to take one or two drops of antibacterial eye drops before and after swimming. After getting red eye, you should actively treat it, and the general requirement is to be timely, thorough and persistent. Once discovered, treat immediately, do not interrupt, and continue treatment for 1 week after the symptoms have completely disappeared to prevent a relapse. Treatment can be done by rinsing the eye. When there is a lot of discharge from the affected eye, it is advisable to rinse the conjunctival sac with an appropriate rinse agent such as saline or 2% boric acid water 2 to 3 times a day and wipe the lid margin with a sterile cotton swab. Eye drops or ointment can also be applied to the affected eye. If the infection is bacterial, the most effective antibiotic eye drops can be selected according to the strain of bacteria examined, and depending on the severity of the condition, eye drops can be ordered every 2 to 3 hours or once every hour. The eye ointment can be applied to children, such as ciprofloxacin, chlortetracycline or tetracycline eye ointment, and the secretions need to be scrubbed clean before each dose. For mixed viral infections of conjunctivitis, in addition to the above drug therapy, but also available antiviral eye drops, such as adenovirus available 0.1% hydroxybenzazole eye drops, 0.1% peptide butylamine emulsion, such as small viruses available 0.1% herpes net, 0.1% no ring guanosine eye drops, etc., 2 to 3 times a day, if necessary, can also apply interferon. When available, bacterial culture and drug sensitivity tests can be performed to select the appropriate antibiotics. When the inflammation is controlled, in order to prevent recurrence, it is still necessary to order eye drops for about 1 week, or apply astringent, such as 0.25% zinc sulfate eye drops, 2 to 3 times a day, in order to improve the congestion and prevent recurrence.