Blinking is a normal phenomenon for a 5-year-old child. If the blinking is too frequent, it may be caused by sleep deprivation, conjunctivitis and inverted eyelashes, etc. You can choose to adjust the sleep habits, medication and inverted eyelashes extraction to relieve the discomfort. 1. Adjusting sleep habits: 5-year-old children sleep irregularly, when sleepy, eye soreness and discomfort, children may appear to blink frequently, parents are advised to adjust the child’s sleep habits, can effectively improve the child’s blinking symptoms. 2. medication: 5-year-old children frequently blinking, may be bacterial, viral infection caused by conjunctivitis, the patient may also appear conjunctival congestion, photophobia, tearing discomfort, the patient can be under the guidance of the doctor to use levofloxacin hydrochloride eye drops, ophthalmic gel ganciclovir and other medications, to promote the recovery of the condition, to alleviate the discomfort of the eyes. 3. Inverted eyelashes treatment: If a 5-year-old child has inverted eyelashes, because the direction of eyelash growth is abnormal, irritating the eye surface, the child may have the symptom of frequent blinking. Parents are advised to bring their children to the hospital in time, under the guidance of the doctor for extraction or electrolysis to remove impingement, to improve the child’s frequent blinking effect. It is recommended that children with frequent blinking should be seen by a doctor for evaluation of their condition and treatment as prescribed by the doctor.