I believe this is also puzzled by many beauty lovers. Next, please ask the experts of Guangzhou Shuguang Hospital to decrypt it for you. The key points for attention in lip augmentation with hyaluronic acid injection are: preoperative preparation: 1. Take antibiotics orally or inject them three days before operation to prevent infection; 2. One week after menstruation is appropriate; 3. If patients often have labial blisters, they should also take vitamin C orally before operation and take vitamin C and antiviral drugs within five days after operation; 4. Three days before the operation, mainly avoid spicy food, peanuts, melon seeds, seafood and other foods can not be eaten. Postoperative preparation: 1. Avoid sauna for one week after injection of hyaluronic acid. 2. Maintain general basic maintenance procedures after injection, especially don't massage the treatment site. 3. Avoid strenuous exercise for a short time after injecting hyaluronic acid. 4. Do not apply ice or hot compress to the injection site of hyaluronic acid. 5. Within 24 hours after the lip peak of the hyaluronic acid lip-filling bead is injected, in order to fix the shape, avoid touching the hyaluronic acid injection area. 6. One week after the injection of hyaluronic acid, try not to touch your lips when eating, so as not to lose hyaluronic acid by eating too cold or overheated food. 7. Try to avoid taking aspirin or other similar substances for promoting blood circulation and removing blood stasis after injecting hyaluronic acid for one week.