Sweat spots, also known as lichen planus or pityriasis pilaris, are a superficial fungal infection that occurs on the front and back of the body where sebum production is high. Of course, it can also occur on the face, but the color of the face is often white, especially in children. Treatment should be directed at the cause of the disease, because the cause of the disease is the infection of Malassezia furfur, so you can use 2% ketoconazole lotion on the face scrubbing, 2-3 days scrubbing once, scrubbing let ketoconazole lotion foam, and then stay a 3-5 minutes, 2-3 days / time. Topical antifungal creams, such as naftifine ketoconazole cream, boutinafine cream, bifenazole cream, etc., 2 times/day, for about 20-30 days, will have a significant effect.