What should I do about a newborn baby's mouth ulcer?

For newborns with oral ulcers, parents are advised to take the following measures: Maintain oral hygiene: Clean the baby's mouth regularly with warm water to prevent bacterial growth. Adjust diet: If the baby has started consuming complementary foods, choose mild, easily digestible foods such as rice porridge and vegetable juice to reduce oral discomfort. Monitor potential causes: Consider possible causes of the baby's oral ulcers, such as vitamin B deficiency or hormonal changes in the mother, and seek treatment under a doctor's guidance. Use medications appropriately: If pain is significant, use topical anesthetics or ulcer-healing medications as advised by a doctor. Implementing these measures can effectively alleviate symptoms of oral ulcers in babies and promote their healthy development. If needed, timely medical consultation is recommended.