Within 5 days after treatment: 1. Do not use cosmetics and skin care products containing fruit acid and A acid, and use a mild skin care formula. 2. Don't use scrub, alcohol or antiperspirant. 3. Avoid showering hot water in the treatment area when taking a bath, and use warm water. 4. Don't take a sauna or steam bath. 5. Avoid infection and don't swim in the pool or beach. 6. Don't wear tight clothes or stockings, and keep the treatment area dry and breathable. 7. Don't drink. During the whole treatment: avoid ultraviolet radiation such as sun exposure, and choose sunscreen (sun protection degree is at least 30) after treatment.