A piece of white on a child’s face in spring may be caused by white chaff rash, parasitic infection or vitiligo. 1. white chaff rash: children in the dry weather due to lack of moisture dry skin, easy to appear localized a piece of white chaff rash, this situation is normal. Usually pay attention to the baby’s skin to do a good job of moisturizing. 2. Parasite infection: in the spring time the child easily infected with parasites, if infected with parasites can easily lead to the face of the worm spots. 3. Vitiligo: If a child has vitiligo, it can also lead to local skin pigmentation loss. Parents should regularly bring their children to the hospital to go to the health checkup, the child face a piece of white, need to go to the hospital as soon as possible, to find out the cause, do targeted treatment.