What is the cause of sudden acne on the face?

Pimples can be caused by irregular diet, spicy food, fried food, sweets and dairy products. Staying up late, poor rest, psychological anxiety and excessive work pressure can also cause acne. Pay attention to regular work and rest, eat more fresh vegetables and fruits, go to bed early and get up early, and exercise properly to prevent acne. After the acne burst, pay attention to the skin cleaning of acne, prevent scratching, actively anti-inflammatory, under the guidance of a doctor, topical salicylic acid cream, adapalene, bansai cream, or fruit acid skin rejuvenation, if necessary, oral antibiotics and vitamin A acid drugs, commonly used doxycycline, etc., at the same time do a good job of oil control and moisturizing.