Eight months, 24 hours after injection of fat-dissolving needle, no water, no face pollution, no cosmetics and no strenuous exercise; Within 72 hours after liposuction needle injection, drugs for external use and other irritating substances shall not be applied to and around the injection site; The age of liposolution needle injection is 20-65 years old, the effective time after injection is 3- 14 days, and the effective maintenance time after injection is generally 3-24 months. Due to personal physical reasons, the operation effect and maintenance time will be different, please forgive the patient; Do not drink alcohol, eat irritating food, peppers, seafood, etc. Within one week after injection of liposuction needle; Try to pay attention to a normal diet, don't overeat, don't eat fatty and polysaccharide foods, and strengthen exercise to enhance physical fitness.