Chronic conjunctivitis is a chronic inflammation of the conjunctiva caused by a variety of reasons. Its etiology mainly includes bacterial infection, adverse environmental stimuli, the impact of eye diseases, bad living habits, and so on. Its clinical characteristics are generally eye discomfort, white foamy secretion, mild or not obvious congestion of the eyelid conjunctiva. If you want a good treatment, you need to remove the cause first, and then use antibiotic eye drops, antibiotic eye ointment and astringent locally. Conventional drugs mainly include erythromycin, rifampicin, ofloxacin, etc., mainly for bacterial infection and combination of hormone drugs, drug resistance and virus infection. Traditional Chinese medicine can also treat conjunctivitis, which is mainly reflected in the outbreak of fire. It is recommended to use Niuhuang Shangqing Pill, Qiju Dihuang Pill, antiviral oral liquid, etc., but these drugs must be used with caution for people with cold constitution.