Baby forehead has several pieces of pale white marks, should be treated according to the etiology of the disease, if the lichen planus can use antifungal drugs; if it is post-inflammatory hypopigmentation, generally no need for special treatment; pityriasis alba can be used externally with moisturizing drugs; vitiligo, can be externally used glucocorticoid medication, ultraviolet light phototherapy and so on. 1. lichen planus: mainly due to the growth and reproduction of malassezia caused by skin lichen planus, may lead to the baby forehead has several pieces of light white marks, can be used externally ketoconazole cream, clotrimazole cream and other antifungal drugs for treatment. 2. Post-inflammatory hypopigmentation: post-inflammatory hypopigmentation of the skin, generally drink more water, eat more vegetables, with the metabolism, most of them will recover on their own, without special treatment. 3. white chaff rash: you can use vitamin E urea ointment and other moisturizing drugs for auxiliary conditioning. 4. vitiligo: you can use fluticasone propionate cream, pimecrolimus ointment and other drugs for treatment; you can also take narrow-spectrum medium-wave ultraviolet, or 308 excimer laser and other physical treatment measures. The baby forehead has several pieces of light white marks, need to go to the hospital pediatrics or dermatology examination, clear cause of the treatment as prescribed by the doctor.