Acne is caused by a variety of factors, such as endocrine dysfunction, abnormal keratinization of the sebaceous ducts of the hair follicles, and infection by Propionibacterium acnes, etc. The most common type of acne is acne vulgaris, which mainly manifests as pimples (including whiteheads and blackheads). Inflammatory acne is also common, with red follicular papules, some with pustules, some with inflammatory nodules, or cysts, and some lesions may coalesce to form coalescing acne, resulting in intractable acne. Grade 1 acne is usually treated with topical medications, while grade 2 acne is treated with oral antibiotics and red and blue light. grade 3 acne is usually treated with a combination of oral and topical medications along with grade 2 treatment, and can be treated with retinoic acid. Grade 4 acne is treated with retinoic acid as the drug of choice, and then combined with other treatment methods. However, active symptomatic treatment is still required in the specific treatment process. But the patient’s active cooperation is also very important. As the saying goes: three parts treatment and seven parts maintenance, so acne treatment care and maintenance are very important. The following is a brief list of the appropriate taboos for acne patients: 1. All alcohol (including white wine, red wine, yellow wine, wine, etc.), hot pot, seafood, fish, shrimp and crab. 2, some meat: rooster, goose, dog, beef, lamb. Pork head meat, hooves and offal. Other animal offal. 3, vegetables: ginger, onion, garlic (except for a small amount of seasoning), onions, peppers, leeks. 4, fruits: mango, durian, pineapple honey, lychee, raisins. 5, drinks: coffee, strong tea. 6, snacks: cream foods, desserts, chocolate, nuts, fried food, barbecue, puffed food. In addition, in the process of acne treatment, you need to pay attention to the combination of work and rest, do not stay up late, sleep to maintain adequate, but also to maintain a smooth bowel movement, emotional stability.