Baby tongue has white vesicle, still have ulcer, how to do

The doctor replied:

there are small white bubbles on the baby's tongue. This consideration may be an ulcer. In this case, you can spray the child with oral ulcer powder or Shuangliao Houfeng powder. At ordinary times, try not to let the child eat food that is easy to get angry. You can also take your child to the stomatology department for examination.