What happened to sudden acne on the face?

Acne is caused by the infection of Propionibacterium acnes and the decrease of immune function of the patient himself. Acne is caused by the abnormal keratosis of the sebaceous glands of the hair follicles. Of course, in addition to this, some patients are due to staying up late or lack of sleep, or overwork and eating some spicy and stimulating foods, including alcohol, hot pot, chili, barbecue and other foods can also cause acne.