If the baby to blink, mainly consider the following reasons: 1, caused by children with trachoma, in children with trachoma will appear always blinking, and red eyes, you can apply erythromycin ointment to improve. 2, caused by children with Tourette’s Syndrome, children with Tourette’s Syndrome will blink, accompanied by involuntary tilting of the mouth, shrugging the shoulders, drumming the stomach, and other tics. 3, caused by children with inverted eyelashes, common in preschool children, because the inverted eyelashes will stimulate the children’s eye nerves, thus causing blinking. 3, due to children suffering from inverted eyelashes, common in pre-school children, due to inverted eyelashes will stimulate children’s eye nerves, resulting in blinking.