How come your 6 year old has white bumps on his face?

White bumps on a child's face can be caused by several factors, such as milia, which are tiny cysts that often appear in infants and young children. They can also result from clogged pores, allergic reactions, or other skin conditions like eczema. If the bumps persist or are accompanied by other symptoms, it's best to consult a pediatrician or dermatologist for an accurate diagnosis and appropriate treatment.