Your 9 year old may have milia. Lots of babies get this but it can happen at any age. https://www.mayoclinic.org/diseases-conditions/milia/symptoms-causes/syc-20375073 This is if the bumps are tiny. They are a keratin build up in the skin. If the bumps are larger, they may be molluscum contagiosum. That's a virus. Impetigo is something that also occurs especially around the mouth and nose but that is not visually as you describe. Based on your description, milia sounds the most likely. Can you take the child to a dermatologist?