Question

What should I do if my 5-month-old baby has white blisters in his mouth?

Answer

If white blisters appear in the mouth of a five-month-old baby and they are not crying and eating normally, this may be known as ‘spitting up’, which is the small amount of milk vomited shortly after a baby has been fed. However, frequent vomiting, especially if it becomes more intense, and occurs shortly after each bowel movement, may indicate congenital pyloric stenosis. In such cases, parents should pay close attention and seek medical advice.