White patches on a girl’s face can have many conditions, such as vitiligo, lichen planus, anemic nevus, anaplastic nevus, and one of the most common types of pityriasis albuginea. Pityriasis albuginea, also called pityriasis simplex, is commonly known as peach fungus and worm spot, however, it is not related to parasitic infections such as roundworms and is commonly seen in children and adolescents between the ages of 3 and 16 and can heal on its own. It is red or pink in the early stage and pale white in the later stage, the surface can have fine scales, it is usually multiple, but also can be seen in single cases, mostly on the face, a few can occur on the trunk and extremities. Its etiology is not particularly clear, and there are some that believe it is related to Malassezia furfur and can be treated without treatment. If you specifically want to treat it, then just pay attention to sun protection and moisturizing.