Acne is mainly caused by endocrine disorders and pore blockage. Never squeeze with your hands if you have acne, it will leave a scar. You can buy tetracycline to relieve inflammation and pain. Eat less spicy food (such as pepper, onion, garlic, etc.). ), less greasy food (such as animal oil, vegetable oil, etc.). ), eat less sweets (such as sugar and coffee) and eat less "hair products" (such as dogs/mutton, etc.). ), and eat cool vegetables and fruits properly. Clean skin and clear pores. Proper exercise and sweating can eliminate skin toxins.