Skin white spots may be due to vitiligo, sweat spots or unpigmented nevi, and patients are advised to be treated by medication, laser and other means under the guidance of a doctor. 1. Vitiligo: the cause of vitiligo is not very clear, you can use topical glucocorticoid drugs (halomethasone cream), calcium-modulated phosphatase inhibitors (tacrolimus ointment) and vitamin D3 derivatives (carbotriol), can be combined with the systematic use of glucocorticosteroids or ultraviolet phototherapy. 2. Sweat patches: sweat patches, also known as florid chaff rash, are caused by the over proliferation of Malassezia on the skin surface, usually occurring on the chest and back and other parts of the chest and back, in the treatment of which can be used topically with antifungal drugs, such as ketoconazole cream, and can be used topically with ketoconazole lotion to wash. 3. Nonpigmented nevus: nonpigmented nevus usually exists after birth and is distributed along the unilateral nerve, generally does not need special treatment. If patients feel that it affects the aesthetics, it can be improved by epidermal transplantation. For patients with white spots, it is recommended to go to regular hospitals in time for examination and standardized treatment under the guidance of professional doctors.