Colds with increased eye discharge are more common with viral infections, but may also be bacterial infections. 1. Viral infection: Cold is a kind of upper respiratory tract infection, which is caused by viruses, and will have fever, runny nose, nasal congestion, dry and sore throat, cough, etc. Some of them will also be accompanied by ocular cicatrization, with itchy eyes, tearing and conjunctival congestion and other discomforts. If there is a lot of secretion from the eyes after a cold, and the secretion is white or watery, it is usually considered to be a viral infection. 2. Bacterial infection: If some people have a lot of eye secretions after cold, which are yellow or yellowish-green purulent secretions and accompanied by local redness, swelling or obvious congestion of conjunctiva, it is usually considered to be a combined or secondary bacterial infection, and there are often symptoms such as thick nasal mucus, congestion and coughing up phlegm. Colds and eye discharge, combined with the character of the discharge and accompanying symptoms, improve the relevant laboratory tests to determine which pathogenic bacteria infection, clear the nature of the pathogenic bacteria and follow the doctor’s instructions for standardized treatment.