The root cause is endocrine disorder, which is caused by the exuberant secretion of androgen. In addition, spicy food irritation and oily skin can also be caused. It is suggested that antibiotics such as clindamycin and metronidazole should be taken orally, and viaminate and vitamin E ointment should be used externally. Usually use sulfur soap to clean the skin, eat more fruits and vegetables, eat less irritating foods such as fat, sugar and spicy food, keep the stool unobstructed and pay attention to personal hygiene.