What happened to the sudden explosion of acne on the face?

There are many reasons for the sudden appearance of large-scale acne on the face. Clinically, there are recent late nights, tiredness, poor mood, and mental stress. It is also related to diet, such as eating a lot of spicy and stimulating foods recently or eating a lot of greasy foods. Recently, it has been shown that it is sweet, and some people are caused by changes in dietary rules. Some people suddenly show acne due to climate change, others because of intestinal problems, such as defecation difficulties, diarrhea. Some people show acne and menstrual cycle and endocrine disorders, and others because of the change of skin care products and cosmetics caused by.