3-month-old babies have eye boogers, this situation is considered to be caused by fire. The baby usually drink less water, do not like to eat vegetables and fruits, may be the air inside the house is too dry, at night when the baby sleeps, the house can use a humidifier or in the house to put pots of water to increase the humidity of the room. Usually give the baby more water, eat more vegetables and fruits, you can use a skimmed cotton wool dipped in warm water, from the inner corner of the eye to the outer side of the eye gently wipe off the eye boogers, 0.25% chloramphenicol ophthalmic solution. You can feed your baby some chrysanthemum and honeysuckle water. Eye boogers should be cleaned in time, and if there is no improvement, review is recommended. Less consumption of vegetables and fruits in normal times can cause dry stools, thick tongue coating and other symptoms, the best way to treat is to change the bad eating habits, drink more water, and if necessary, take some oral medication to clear heat and fire, eliminate food. The above content is for reference only, the specific medication, treatment, please by the doctor interview guidance shall prevail.