Conjunctivitis is the most common conjunctival lesion caused by chlamydia trachomatis infection, and it is a common eye infectious disease, commonly known as "pink eye". Its clinical manifestations are conjunctival congestion, redness, tears and light stimulation. At present, the commonly used anti-infective drugs are erythromycin eye ointment, ofloxacin eye ointment and chloramphenicol eye drops. After eye rest and continuous use of eye drops for about 1 week, the symptoms were relieved and the condition was well controlled.