Mites are a common microorganism that can normally live on human skin and are also a type of parasite. In most cases, as long as the skin barrier is not damaged, mites living on the skin will not cause disease and will not have obvious symptoms of discomfort. When there is excessive oil secretion due to various reasons, the mites will multiply and the protective barrier of the skin will be damaged, and the corresponding symptoms of mite infection will appear, usually manifesting as folliculitis and accompanied by itching, requiring mite removal treatment. You can use sulfur soap to wash your face or take oral metronidazole, and you should try to keep your face clean and hygienic, choose a face wash that removes oil, and avoid overly greasy food.