Wormy spots usually take about 2 months to fade completely, depending on the individual. Wormy spots is a common name, medically known as pityriasis albuginea or pityriasis simplex, for hypopigmented spots occurring on the face. Wormy spots occur in children and need to be distinguished from vitiligo, lichen planus, and post-inflammatory hypopigmentation in clinical practice. Usually, the worm spots can return to normal in about 1 month after treatment, and the untreated worm spots can fade away naturally in 2-3 months, and the treatment is mainly based on local medication, such as topical weak hormone ointment and moisturizing moisturizer. Therefore, parents find children with white spots on the face, do not confidently think that is the worm spot and take deworming treatment by themselves, if it is vitiligo, delayed treatment may lead to aggravation of the disease.