Avoid water washing on the day of injection, try to wash the affected area with cold water within 3 days after surgery, and avoid massage within 1 week. Slight soreness and swelling in the area after injection is normal, and slight bruising will gradually subside in 2-3 days. After injection, the effect usually starts in about 2 weeks, and the effect is maintained for about half a year. Reduce chewing hard food and chewing gum after bite injection. Avoid strenuous exercise of lower limbs and reduce wearing high heels for 1 week after calf injection. Not recommended for those who plan to prepare for pregnancy within 6 months.