Increased eye discharge in children with colds is primarily due to congestion and swelling of the nasal mucosa during a cold, which blocks the nasolacrimal duct. At the same time, pathogenic microorganisms from the nasal cavity can enter the eyes through the nasolacrimal duct, causing conjunctivitis, which leads to increased eye discharge.

Therefore, when a child shows symptoms of a cold, it is important to maintain cleanliness and hygiene of the eyes. If nasal congestion is severe, medication should be administered under the guidance of a doctor to reduce the chance of developing conjunctivitis. If there is excessive eye discharge, eye drops can be used locally to alleviate the symptoms.