Most of the baby’s eye drops are caused by bacterial infections, and the following two conditions are common: First, bacterial conjunctivitis, mostly accompanied by red eyes, tearing, increased secretions, and yellow purulent secretions, can be given tobramycin eye drops, one drop each time, four times a day. Erythromycin eye ointment can be applied locally at bedtime, and most of the symptoms will improve significantly after 2-3 days. Second, blockage of the tear sac or narrow tear sac, yellow eye discharge is more, squeeze the upper side of the nose tear sac area, obviously there will be secretion outflow, you can first apply tobramycin eye drops to control the infection. After the infection is controlled, lacrimal duct exploration will be performed, and most of them will be significantly improved after about three times of exploration.