White mouth in infants may be normal, but it does not exclude pathological factors such as thrush, mouth ulcers, etc., which can be relieved by wiping, using medication, gargling and drinking more water. 1. Normal: After a baby eats breast milk or formula, the milk will remain in the baby’s mouth, and the baby will have a white mouth, which is usually normal. Parents can use a small wet towel to gently wipe the small white spots in the mouth, most of them can be wiped away. 2. Thrush: Infants with low resistance are prone to thrush, which is a white curd-like object that appears in the oral mucosa. Can be applied locally with mycotoxin suspension solution. In addition, infants should strengthen the nutrition, increase vitamin B2 and vitamin C in moderation. 3. Mouth ulcers: it is a common oral mucosal disease. Parents can give infants more water to promote the recovery of mouth ulcers; topical application of ice borax, etc. to relieve pain; in addition, it is also necessary to reasonably give infants vitamin supplements. Note that the above drugs, should be used under the guidance of a doctor, avoid unauthorized use of drugs, so as not to cause adverse effects. In addition, the white of the infant’s mouth may also be caused by measles and other reasons. If the infant’s symptoms are not relieved by the above methods, it is recommended to consult a doctor in time, improve the relevant examination, clarify the cause of the disease, and treat the symptoms.