Acne is a condition caused by excessive sebum secretion from one's own sebaceous glands, consumption of spicy and stimulating foods, or frequent staying up late, leading to skin surface infection by Propionibacterium acnes. This disease has no direct correlation with drinking milk, so it is generally acceptable to drink milk. It is mainly important to avoid spicy and stimulating foods, such as lamb, seafood, chili peppers, garlic, alcohol, and tobacco. Additionally, one should avoid staying up late, anxiety, tension, and poor mood, as these can affect the endocrine system and exacerbate the disease. After recovery from the condition, it is essential to maintain a long-term standard in diet and lifestyle habits, strengthen exercise to boost immunity, avoid random use of cosmetics, and use both oral and topical medications prescribed by a dermatology department in a legitimate hospital. The combination with red and blue light therapy can yield faster results.