Hyaluronic acid is also called hyaluronic acid and uronic acid. Because it is one of human dermal tissues, it will stay in the human body for a short time and will be gradually absorbed by the human body, so there will be no allergic reaction. Rhinoplasty by injecting hyaluronic acid is an immediate rhinoplasty method, but its disadvantage is poor timeliness, which can only last for 6 to 12 months. If you want to maintain a long-term rhinoplasty effect, you need a second injection.