4 year old child eye droppings suddenly increased yellow thick need to clarify the cause of the symptomatic treatment, common drugs, surgery and other methods, specific analysis is as follows: 1. Bacterial conjunctivitis: this symptom often occurs with more eye boogers, yellow and thick eye boogers, etc. It can be treated with antibacterial eye drops, such as levofloxacin eye drops, which may have side effects such as foreign body sensation and eye pain. 2. Nasolacrimal duct blockage: If a 4-year-old child has a blocked nasolacrimal duct, there may also be a sudden increase in yellowish eye droppings, you need to go to the hospital in time to unblock the nasolacrimal duct, and in serious cases, surgery may be required. The above medication needs to follow the doctor’s instructions, due to the cause of 4-year-old children’s eye suddenly increased yellow thick more causes, so the treatment is also different, if the child has a sudden increase in yellow thick eye, it is recommended to go to the hospital in time to find out the cause and treatment.