Infants with symptoms of thick, yellowish eye droppings in one eye need to be treated according to the cause. Common causes include inflammation, congenital tear duct obstruction and impaction, etc. The details are analyzed as follows: 1. Inflammation: When babies have yellowish eye droppings in one eye, bacterial infections, such as bacterial conjunctivitis, are often considered. You can use a cotton swab or a clean towel to wipe off the local secretions, and you can use tobramycin eye drops as prescribed by the doctor. 2. Congenital tear duct obstruction: If the tear ducts of infants are obstructed, then the normal secretion of tears can not flow into the nasal cavity, tear stagnation and secondary infections, yellow secretions will occur. You can first follow the doctor’s instructions to use tobramycin eye drops to fight infection, appropriate massage of the lacrimal sac area, if the effect is not good, if necessary, feasible lacrimal canal probing surgery to relieve. 3. Inverted eyelashes: that is, the baby’s eyelashes grow inward to stimulate the cornea, and then the baby can have more tears, eye discharge increased symptoms. In addition to this, most babies also have an obvious foreign body sensation. If it is a single eyelash, plucking can be done. However, if the condition of inverted eyelashes is more serious, inversion correction surgery is needed if necessary. There may also be other reasons for babies to have yellowish boogers in one eye, so it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy.